Linux
From Spring
A Linux porting effort is underway at https://opensvn.csie.org/traccgi/taspring_linux/trac.cgi/wiki
With a mailinglist here http://lolut.utbm.info/cgi-bin/mailman/listinfo/taspring-linux

The first sceenshot of Spring running on Linux.
The code is running on Linux!
But it's not ready for a release, networking and sound need love for example.