The PlayBrains folks have sent along word that Madballs in...Babo Invasion has been updated on the PC and now includes some spiffy new content. Two new weapons have been added to the game; the B*D*I* Slicer and the Scored Striker. Both weapons are primarily for multiplayer, but may be used in the game's co-op mode.
Along with these weapons there are five new achievements available, though every one is for the game's versus mode. Finally, the good news for PC players, is dedicated server support for the game! There's even a link to download your own dedicated server and host your own ballin' parties.
Source: Playbrains.com