After losing its multiplayer component earlier this year in the GameSpy server shutdown, Gearbox Software's Borderlands will have the service restored soon, according to a post on the Steam community forums.
In April, publisher 2K announced that the impending shutdown of online service provider GameSpy's servers would "temporarily" take Borderlands' multiplayer offline, as well as online components for some Civilization games. At the time, 2K noted that the plan was to migrate these online components to Steamworks.
An update released yesterday stripped the PC game of its SecuRom DRM and added a Granting Tool that transformed retail disc versions of Borderlands into Steam-compatible versions. The update also imported SecuRom DLC keys into the Steam version, so players who purchased Borderlands DLC outside of Steam can activate these keys within Steam to transfer and claim the content.
The same post notes that multiplayer through Steamworks is coming to Borderlands in a future update. A News Ticker added to the bottom of the main menu will continue to give players updates on the multiplayer restoration effort.