Touche, but I just mean the basic meat and potatoes concepts.
-gamertags
-friends lists that are easy to navigate
-dash that can be brought up in-game
-easy invite system
-easy group chat
-little profiles (picture, real name, bio, motto)
-list friends' games played (kind of like when you compare achievements)
I'm excited because MS did all this with X amount of RAM allotted to it, and then I keep hearing Nintendo is going to have a lot more dedicated to the OS, so the possibilities are limitless. (Sorry I don't know real numbers, I have a shitty memory.)