4 GB of shared RAM would have caused problems in the long run with the social features they were planning. Cramming those features into 512MB or less would have left little room for future features to be added to the OS (like cross game chat on PS3) and cramming next gen quality games into 3.5GB would have caused problems for the more ambitious games.
Going for 8GB of RAM is the right choice for the long term, and will allow for much more expansive and dynamic games without sacrificing visuals.
@TheVoxelman on twitter







