Slightly off topic, but I think Sony are getting things right, PS Plus I've always thought to be a waste of money, but a friend of mine subscribed to it, and he's had to upgrade his HD to a 1TB drive as the games the give away free with it are actually pretty good, if you take in to account the cost, you'd only need one or two good games to make it worth it, just wish I had the time to play the games, otherwise I'd subscribe
Tried to find a proper list of what has been offered to date, but couldn't find a definitive list, but this one has some detail:
http://blog.us.playstation.com/2012/06/05/playstation-plus-e3-2012/ although this might be the US list so some of them may differ (also nothing to stop you setting up a US account or even a Japanese account -I have a UK and a US account - the US store appears to be better)
One thing i'd like to see from the XBox though is party chat, you setup a group chat outside the game, so you can just talk to each other and ignore all of the other nobs online
Also a proper kinect interface would be nice, rather than the flop it tried to launch