Everything at the conference lagged. ALL OF THEM.
Did no one notice that EVERYTHING lagged? This was not just a kinect lags, or move lags, or the wii mote was lagging, it all did. It is as simple as the projectors response times (I read these were the same culprits in the 3D demo by Sony, ie they just arent as bright due to their nature). They were the real culprits here. All the products in the end will all run almost identically. It is all up to the library of games that comes out for each different product.
Most of those games that "seemed" to lag were magically "fixed" when people played them at their corresponding booths. (one unit hooked directly to the TV)