Steam has news that
Dawn of War II: Retribution will be using Steamworks, rather than the unpopular Games for Windows LIVE of its forebears. Word is: "THQ announced today that Warhammer® 40,000®: Dawn of War II ® - Retribution™ will use Steamworks networking and matchmaking to provide co-operative and competitive online play. Dawn of War II - Retribution will be a completely stand alone title in the series and will provide multiple campaigns to play, as well as all six multiplayer races, with new units for each of the existing five races and one new unannounced one." Also,
Eurogamer has word that the standalone RTS expansion will have a beta test early next year, and they also have word that the original Dawn of War II and the previous expansion will not be switching to Steamworks from GFWL "in order to preserve the owners of those titles ability to earn Live achievements as well as their established friends lists."