Of all the things affected by the GameSpy shutdown, Borderlands' now-hobbled multiplayer is perhaps the most egregious. Co-op is kind of the whole point there, so it's good to hear it will soon be making a return. A
Steam update yesterday
stripped all the nasty SecuROM DRM from the game and its expansions, as well as adding a "granting tool" capable of turning retail discs of Borderlands into Steam versions. Multiplayer isn't back yet, but you will find a "news ticker" on the main menu now, which will keep players' abreast of the effort to add Steamworks to the game.
Here's the full list of changes:
Removed SecuRom from the title and all DLC
Added a “Granting Tool” In the steam “Tools” section that turns a retail disc into a Steam version of Borderlands
“News Ticker” added to the main menu to give you updates on the Multiplayer restoration updates.
Imported SecuRom DLC keys into Steam, so if you bought DLC outside of Steam, activate it within Steam and get your matching content.
The patch notes confirm that "Steamworks multiplayer is coming in a future update", so until then I guess we're stuck playing the original Borderlands solo. Or playing Borderlands 2 with friends, which is a bit more likely.