Will Video Game Systems Replace other Technology?

Replacing the Cablebox:

Recently after E3 last year I have been thinking about the ideas that Microsoft and Nintendo brought up which were video game consoles becoming the entertainment box for a living room. Though even the first PlayStation had functionality outside playing games and the PlayStation 2 had even more. Today you can even browse the internet with your console! Now as we all know the entertainment box of most households is the cablebox to watch television but, with things like Netflix and other streaming services video game consoles are quickly catching up. Soon I could even see live television being on video game consoles which would eliminate the need for a cablebox completely.

Replacing the Cellphone:

As for handhelds I see them knocking out something else in the future. Cellphones. Everyday every thing you carry with you is fighting for pocket space and cellphones and gaming systems are no exception. The N-Gage and the Sony Ericsson tried to be phones as well as handhelds but, due to games that lack quality they didn't really take off. I feel that if the next iterations of our handhelds also had good phone functionality they could replace our cellphones. I mean the fact that people buy smartphones to play games shows that people do want to play games on the go. If the newer handhelds doubled as cellphones they could directly compete with smartphones which I think would be good for business.