I’m loving the last.fm app, it does suck you can’t use it while playing games, but at the same time it’s like having a sattelite radio right on my HD tv with the awesome sound system i have too, i use it if im cleaning up and stuff like that, or if im just chilling with people or anything, it’s a welcome addition to the xbl gold membership, makes it more worth it for me.
as for facebook and twitter, blahh. i suppose if a problem happens with my laptop i’ll be glad to have facebook to update all my friends with w.e im doing, i dont use twitter so idc about that.
i am liking the new zune video marketplace and stuff though, i like the fact you can purchase HD movies for like 5 bucks more than it would cost to rent them, though I don’t have the harddrive space to store them anyways 
has anyone tried out the movie party thing? im curious how it works… could i rent a movie and invite my xbl party and we could all watch it? or does everyone have to rent it?