To coincide with the new beta release for OS X, there's a new beta release for Linux, too.
See the 'Testing and Bug Reports' forum for the changelist.
The files are in the usual places:
rsync://rsync.alioth.net/oolite/dev/Linux-x86
ftp://ftp.alioth.net/oolite
http://oolite-linux.berlios.de
New development release - 1.65 beta 3
Moderators: winston, another_commander, Getafix