So Crysis 2 has been removed from Steam (it was a terrible port anyway, i'm not sure what crytek were thinking putting it out in that state) because Crytek broke the Steam TOS with it by agreeing to do something exclusively with Origin (EA's download service). EA say Crytek is to blame, because they chose to go with Origin (as a result of their contract with their publisher, EA)
Alice: Madness Returns was held exclusive to Origin for a few days before coming to steam in a slightly cut down version (missing all the stuff you'd get from pre-ordering it, because you could only pre-order it via Origin).
EA remains the physical publisher of Valve games for the time being.
Old woman says "EA, you suck"
Have i missed anything so far?