Several years back (before Kinect was even talked about), I said 2013 based on 1) console pricing at the time and 2) profitability (or rather lack there of) for the PS360.
Now that Kinect has introduced, I could see anything from between 2013 and 2015 so I have no issue with this.
Also I think its important to keep in mind that developers aren't eager for the next gen yet either. In addition, better graphics just aren't going to be enough next time. Heck, this gen was the jump to HD. How do you top THAT jump in visual fidelity? 2015 means motion control interfaces and 3D will have had more time to mature and prices to reduce.
Most importantly, though, it gives us time as GAMERS to spend our money on GAMES rather than saving up for the next $500 console ...
