Dead Rising 2 and its standalone expansion Dead Rising 2: Off the Record will both make the transition over to Steamworks today, ditching.
Anyone who owns the games either through Steam or in boxed retail form can net a free Steamworks copy, though if you bought directly from GFWL you're out of luck.
“If you purchased a digital copy directly from the Microsoft GFWL marketplace,” explains, “you can continue to enjoy the game(s) on GFWL Service. Unfortunately, we cannot accommodate a Steamworks transfer for these folks as there is no authentication option available.”
GFWL versions will continue to support online play. When GFWL decides to work, that is. Steamworks copies will with all the usual goodies, including Steam achievements, leaderboards, cloud saves, and more.
You can find a more detailed FAQ over on the