I don't have OS X yet, unfortunately. Actually, I just got the camera working, and it's not too bad. The problem was that the installer sits doing nothing for ages (like five minutes) before it throws up the install dialog. It's fine from there on.
Not too bad in use, although my friend's got a Casio, also 2.2mpixels, which seems waay sharper, and focuses down to about 2cm -- I've got some great closeups from that one.
Thanks man,
Jonny05