Amazon is bragging about sales numbers for its Kindle products, reporting that over 1 million devices were sold per week in December. The company did not report numbers for individual products, but noted that the Kindle Fire has held the top spot on its bestseller charts over the holiday season.

Since the launch of the Kindle brand, Amazon has been famously shy about putting hard numbers to the brand's sales. On December 15, the company announced that Kindles had been tracking at one million devices per week for the preceding three weeks, but very little had been shared about sales before then.

The Kindle Fire seems to be the thrust behind the new numbers worth reporting. One estimate based on the "1 million sales per week" figure guesses the Kindle Fire made up about 780,000 units of each million sold. Amazon reports that the Kindle Touch was the second best-selling product on the site, followed by the "Kindle," the least expensive non-touch, non-3G version.

Barnes and Noble has remained mum about sales of its Kindle Fire competitor, the Nook Tablet. The iPad was forecasted to sell 13.5 million units over the course of the fourth quarter.