First off, I think this generation will be quick for both Sony and Microsoft. They have no more aces up their sleeves (save maybe GT5) and the software has not driven the hardware in the long term, only price cuts have helped in the regard. After Move fails, and it probably will, expect the next system between 2011 and 2012.
I think Sony will be moving up market with the PS4. It's goal is going to try and push better graphics and sound as well as 3D, which they will see as the wave of the future. It wont do as much as the PS3 will and be Sony's Gamecube.







