While that's a "rumor" page, the controller thing has been pretty much confirmed, and the backwards compatiblity feature looks almost certain...that is, if you have the optional hard drive. Still, this puts me a little more firmly behind the 360, regardless of the stupid name. Lack of XBox compatibility was a sticking point for me.
I love the fact that the controllers will work with a PC, though. As long as the controllers are fairly well designed, it means I can finally retire my 7-year-old Sidewinder pad.
as a PS3 owner, I'd say go with the 360. There's some winds of change blowing 'round the PSN, and while it might seem irksome to pay for the "privilege" of playing online, in the long run you'll probably end up happier.