I've been using Flash since it grew out of Future Splash and even spoken with some folks at MM. According to them (for the present at least) it's unlikely *they'll* make one.
BUT! You can always keep this bookmarked:
http://www.openswf.org/
Personally, I use VMWare and then run Flash on top of that.
If you'd like to join a crew of folks pushing to get a version for Linux see:
http://www.actionscript.com/archives/00000340.html
Good luck!