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A lot has changed since early 2001. We've got a new president approaching the end of his first term, the US has embarked on two major wars and the words "Lady Gaga" have become much more than just gibberish. Some things, however, don't change. In nearly each of these intervening years, Apple has issued a major update to its desktop operating system, OS X. This time last year, the company issued OS 10.7 Lion, a king-of-the-jungle moniker many thought would mark the end of Apple's big cat naming scheme and, by extension, the OS X lineage. In February, however, the old operating system showed she still had some life left in her, when the next edition was revealed, arriving over the summer and called Mountain Lion.

Based on the name alone, you'd think 10.8 would be a modest improvement over its predecessor -- not unlike the baby step between Leopard (10.5) and Snow Leopard (10.6). But Apple insists that this latest build is more than just a seasonal refresh -- in all, it boasts more than 200 new features. Some are major, including things like a new Notification Center, AirPlay Mirroring and a desktop version of Messages. Others, such as full-screen mode for Notes... not so much. What seems to unite the vast majority of the 200 features, however, is a nod to iOS. So, how easily can Mac users justify that $20 download? Follow along after the break, as we put those 200 features to the test.

As mentioned earlier, we've just gotten our hands on Qualcomm's latest development platform to see how its first quad core chipset fares. And boy, that APQ8064 really doesn't disappoint, but it should be no surprise -- we've already seen how the top dual core S4 chipsets already beat their quad core competitors in certain aspects, so it's only natural for the quad core S4 Pro to annihilate them. As you can see in our chart after the break, the APQ8064-based MDP easily beat the Tegra 3-based One X and Nexus 7, as well as the Exynos 4412-based Galaxy S III. And partly thanks to the Adreno 320 graphics core, the MDP even scored an astonishing 132fps in our GLBenchmark test, while the quad core Galaxy S III with Mali-400 graphics came second with 99fps, with the remaining devices lingering around 60fps only.

Obviously, the question remains how big of a trade-off there is on battery life in exchange for those two extra cores and the more powerful graphics chip. That said, we have a feeling that Snapdragon's Krait architecture and asynchronously clocked cores will again prove that Tegra 3's 4-PLUS-1 design isn't the best solution for battery efficiency -- as many of you might already know. We shall see when APQ8064-based products become available later this year. For now, take a gander at our numbers and photos.

Update: Hit the break for our hands-on video with the MDP. Also, we had a chance play with the 13-megapixel autofocus camera in the worst possible lighting conditions, and it acquitted itself rather well considering the circumstances. Check out the sample gallery below.

Myriam Joire contributed to this mind-blowing hands-on.

Qualcomm S4 Pro MDP hands-on

Qualcomm S4 Pro MDP screenshots

Qualcomm S4 Pro MDP sample shots

Alright, so you've been successfully pwning n00bz in Battlefield and Call of Duty, but lately you've decided your rig could benefit from one of those surround sound headsets that everyone says will make you so much better at first-person shooters. You might remember Astro Gaming's latest offering from E3, the A50 Wireless Headset -- it's the company's second try at a wireless Dolby Headphone-enabled 7.1 surround sound system. Its previous attempt, the MixAmp 5.8 (sold alone and bundled with the $229 A30 / $280 A40 Wireless Audio Systems), was a solid solution for folks wanting traditional MixAmp controls and enough versatility to use with any pair of wired headphones. (What's up, audiophiles?) However, it didn't provide as seamless a setup for gaming on the couch as headsets with embedded wireless radios like Turtle Beach's X41. So, does essentially shoving the MixAmp 5.8 into an A40 make for a better living room-geared solution? Does it manage to retain that MLG-bred DNA Astro is famous for? Does it trump headsets in its range like the $270 XP500? Most importantly, should serious gamers consider dropping 300 bones for it? We'll explain it all after the break.

Astro Gaming A50 Wireless Audio System review

Astro Gaming A40 plus MixAmp 5.8 vs. A50... Fight!

There have been plenty of false alarms in recent months, but Canon's first mirrorless interchangeable lens camera (ILC) is finally here -- in fact, we're holding it in our hands. The EOS M is clearly reminiscent of a point-and-shoot, such as the company's high-end PowerShot S100. Sure, Canon could have added some of the dedicated controls that its professional user base would demand, but photojournalists aren't the target here, for a few reasons. Canon's primary motivation, at least from an official perspective, was to create a camera that serves to bridge the gap between pocketable compacts and full-size DSLRs with a simple user interface designed to educate, not intimidate. Also key, however, was avoiding cannibalization of the company's low-end and mid-range Digital SLR models, which clearly still have a place in the lineup one tier above this ILC.

Consumers willing to sacrifice hardware controls for a touchscreen-driven UI won't be missing out on much else -- functionally, the EOS M is a near-clone of Rebel T4i with the same 18-megapixel APS-C CMOS sensor, DIGIC 5 processor and 3-inch touchscreen. Even the advanced two-stage focusing system has made its way from the T4i, which utilizes both phase-difference and contrast AF in order to achieve focus more efficiently when capturing video. The housing design and lens mount are unlike any other that Canon has produced, however, combining features from other models without completely eliminating the need for a DSLR, or a compact for that matter. If you can get by without granular controls, you'll do just fine here -- the design really is spectacular. With an $800 price tag, the EOS M falls within the upper tier of the mirrorless category, and it remains to be seen whether it will be an obvious pick when it finally hits stores in October, a month after competitors tease their own products at the massive Photokina expo in Germany. How does it fare today? You'll find our impressions just past the break.

Canon EOS M hands-on

Is it a phone, a tablet or a fabulous phablet? You can call it whatever you want, but we're going to throw it into a new category for two days: free. Indeed, we have two unlocked Samsung Galaxy Notes (N9000) ready to distribute out to two lucky readers, and we have 1SaleADay to thank for the opportunity. The site offers daily deals on all types of electronics, and chances are you'll happen upon something that really strikes your intrigue. So head below to leave a comment as usual, and best of luck to you!

Mad Catz' MLG Pro Circuit controller is aimed squarely at those who play games professionally -- or would like to. We put the PS3 version of the handset through its paces and found that while it's highly customizable, a lack of Sixaxis, force feedback and pressure-sensitive buttons made the gaming experience feel lightweight. Are you a gamer and did you buy one? You've had six months hard labor on this thing, so why not tell us what you thought of it and if you were asked, what would you change?

Your smartphone and / or tablet is just begging for an update. From time to time, these mobile devices are blessed with maintenance refreshes, bug fixes, custom ROMs and anything in between, and so many of them are floating around that it's easy for a sizable chunk to get lost in the mix. To make sure they don't escape without notice, we've gathered every possible update, hack, and other miscellaneous tomfoolery we could find during the last week and crammed them into one convenient roundup. If you find something available for your device, please give us a shout at tips at engadget dawt com and let us know. Enjoy!

Each week Ross Rubin contributes Switched On, a column about consumer technology.

The two worlds of Windows 8 -- one: a traditional desktop UI and the other: the touch-optimized Metro UI -- can, at first, seem so different that they contrast like the multiple personalities of Batman's enemy Two-Face. Yet, despite the different appearances, the forthcoming version of Microsoft's venerable operating system is not about absolutes, but optimizations.

In the dead of summer, what's the easiest way to stay super-cool whilst keeping up with the hottest news in portable communications technology? Why, it's sticking a 120-minute cassette of the Engadget Mobile Podcast in your Walkman Sport, getting airlifted to Patagonia, and sitting atop an icy mountain, chewing a stick of your favorite peppermint gum, of course. If you're looking for a quick chill, though, just hit the play button below and let the digital breeze flow gently through your skull. Either way.

Hosts: Myriam Joire (tnkgrl), Brad Molen
Guest: Joseph Volpe
Producer: Trent Wolbe
Music: Tycho - Coastal Brake (Ghostly International)

00:01:44 - Motorola Atrix HD review
00:09:25 - HTC confirms Android 4.1 Jelly Bean for One X, One XL and One S, includes AT&T, T-Mobile and Rogers models
00:20:37 - LG Optimus 4X HD review: runner-up to the quad-core throne
00:28:19 - LG Optimus Vu review: a 5-inch, pen-enabled phone to take on the Galaxy Note
00:36:50 - T-Mobile officially confirms Samsung Galaxy Note, more details in coming weeks (Update: Official PR!)
00:40:27 - Samsung Galaxy S III for Verizon Wireless review
00:41:00 - Galaxy S III Developer Edition for Verizon appears on Samsung's website
00:45:22 - AT&T and Verizon shared data plans compared
00:59:35 - PSA: Sprint LTE goes live today, honest and for true (update: includes Missouri)
01:15:35 - Import ban on select Motorola Android products starts today
01:19:07 - WSJ: Next iPhone to have even thinner screen
01:27:45 - Google acquires Sparrow, the Apple-focused email app maker
01:32:28 - Nokia's Q2 2012 financials: 4 million Lumias sold, $1.01 billion dollar loss
01:34:08 - Nokia and AT&T cut Lumia 900 price to $50, sweeten the Windows Phone 7.8 pot
01:48:00 - iPad prototype renderings from early-2000s revealed in Apple / Samsung court filings (update: comparison shots)

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This summer has been one of the harshest in recent memory in the US, with record heat waves and more than half of the country experiencing the worst drought conditions in more than 50 years. And in an even more troubling development, an iceberg twice the size of Manhattan broke away from Greenland this week. The need to develop clean alternatives to fossil fuels and water-saving technologies is more urgent than ever, but we're making progress in several key areas. In California, scientists fired 192 lasers onto a single point, producing an amazing 500 trillion watts of energy and bringing them one step closer to starting a nuclear fusion reaction that would produce an unlimited supply of clean energy. In another promising development, a teenager in Egypt figured out a way to turn the country's plastic waste into $78 million worth of fuel.