I remember someone showing a pic of the floor scheme for E3 and there was a little bit 'o confusion over just how big there spot was compared to others. Here is the exact measurements according to
PGC.
Microsoft - 25,000 square feet
Sony - 38,000 square feet
Nintendo - 40,375 square feet
OT - PGC is going to have some pics of the setup process up in a little while....