Stinger has contacted us with an update about the Allegiance source code release. Since I'm no expert on the subject, I'll hand it over to him:
I noticed you reported about the Allegiance source code being released to the public, but you left out an important detail: the Allegiance community has already started delving into the code, and they've set up a CVS mirror. Go to http://www.freeallegiance.org/ to see the work that's already being done, and to play the game for free.
The FreeAllegiance website certainly looks interesting... plus, their stubby little fighter is adorable. You can discuss Allegiance at Crius.net here.