Have been enjoying using Steam on my new gaming PC and this sounds like more good things to come. More discounts, more updates and more devs will be attracted to Steam.
There is a resemblance to Miiverse I think with Steam. It's free to use, each game has their own forums and quite a few have achievements if your into that sort of thing. With the Steam machines coming out the dev control linked below is surely a sign of more improvements coming to Steam?
http://uk.ign.com/ar...-game-discounts