Gary Simmons, the Battle Cat to old school Marathon junkies, sends word that Orbital Arm is now officially open for business. Here's an excerpt from the PR:

Bungie.org is happy to announce a new member of the Borg Collective, none other than Orbital Arm, the home for fans of Marathon 2:Durandal for Windows. If you are unfamiliar with Orbital Arm, these are the people that are converting major 3rd party Marathon 2 maps from the Mac OS to Windows format. You guessed it, they don't have a life, so they ought to fit in pretty well with the rest of us.

He goes on to list some of the currently available conversions, and other resources available for Windows Marathon players. Curious as to why Mac users swear by the game? Stop by and check it out.