Centralized so you don't have to go to multiple places to get your gaming fix (if you like a lot of games rather than just a couple), gamesaves and badges/achie

Centralized so you don't have to go to multiple places to get your gaming fix (if you like a lot of games rather than just a couple), gamesaves and badges/achievements are centrally located and saved in the cloud for gaming anywhere and on any platform, no downloads, consistent UI, more games to browse = better discovery of new games. I'm guessing this service will also have a both a friend list (connected via facebook, twitter or whatever) and/or a lounge or lobby where gamers can make/meet friends and start-up a group game, or just chat in general. Can't really get a critical mass of these at individual game sites.