Keep in mind that not only do we have no precise specs, but it takes a while for developers to master a system's architecture.
For example, the PS3 has come a LONG way graphcially from games like Resistance: Fall of Man to games like Uncharted 2. Likewise, it will probably take a few years after the release of Wii U for it's horsepower to reach a full gallop.
Also, Reggie kept stressing the 1080p resolution; if he's talking about native resolution, that's something virtually no PS3/360 games can boast.








