The mailing lists are up. There are three of them, one for release announcements, one for usage discussion and one for developers. All lists are open to the general public. To subscribe, go to these URLs:
http://lists.sourceforge.net/lists/listinfo/borg-asm-announce
http://lists.sourceforge.net/lists/listinfo/borg-asm-users
http://lists.sourceforge.net/lists/listinfo/borg-asm-devel