I'm borrowing one to see if it reduces the strain on my arms and hands.
Unfortunately, it doesn't show up when I plug it in. [although ls /dev/input shows js0 when it is plugged in] Some of the info I've seen hasn't worked, some is several years old and uses jscalibrator, and some says it isn't an issue any more because the joysticks just work without any trouble.
[P.S. I'm using Gnome 2/Classic in 11.04 at this point. And my good arm is really hurting from having to twist around to use the keyboard or mouse.]