I thought I would shake up some discussion on what possibilities there are for the next-next gen of consoles.
Sony have already announced plans for a PS4, and based on the shelf life expectation of 10 years for PS3, we can expect their next console out in time for Christmas in 2016. I can't even begin to imagine what graphics and improvements will have been created in the next 10 years to give PS4 the real-life graphics we would all expect by 2016.
As a side note there have been a few articles floating about that mention the PS6 or PS7 combining electronics with the unsurpassable processing speed of organic materials (think the human brain). I'm pretty sure this was tongue-in-cheek but... food for thought. I'm guessing the absolute earliest this would come out would be 2030.
And no, I'm not forgetting Nintendo. I think we can expect if the Wii goes well to see more consoles by Nintendo. If they continue to revolutionize, who knows what they may come up with. I could almost hope for a complete virtual reality experience. The Wii-mote is the first step, by interfacing the players wrist and arm movements into code the console can understand. It is not a very big leap to the high-tech virtual reality goggles of the future. I hope though that Nintendo squeeze in another console between now and 2016.
The Xbox 720 (what a name!)... well... I can't really say much. It will boot on the latest unstable version of the Windows Operating System, need twice as much RAM and CPU power to create a gaming experience, and will get so hot during play that you can fry an egg on top of it while playing Halo. I really think Microsoft could make something out of this... the all in one computer/console/breakfast maker.
Perhaps in the future there is room for another company to rise, and blow us away with a gaming system we just can't imagine right now? Will hell freeze over and return Sega to it's glory days? Only time will tell..