[VirtualFrost]

It'd be cool but then FPS gamers would hate such a feature because console players would generally be at a disadvantage to PC players. They also have to figure out how to deal with clashing gamertag/PSN names.

Didn't really think of the Gamertag issue that would surely pose an inconvenience

The obvious work around is multiplayer games will either have to start making their own account services where you then link your PSN/Gamertag or otherwise Sony and Microsoft would have to work on making a platform that games then incorporate into their games. Tricky stuff if they do it for sure though.