I expect Playstation Home to have a profound impact on how people will look at the PS3.
The user icons and profiles (such as for trophies comparison and such) are nice, but it feels far more social if you meet fully customized Sims like avatars, being able to just meet people who happen to be in the same space, chat a little, invite them to play some chess, pool, bowling or whatever. Then maybe invite them into your fully customized home (with private pictures on the wall and such) to listen to some music, play LittleBigPlanet or watch some porn. 
Great for hardcore gamers!







