there were a drivers update, first on feb 19 2010, only for the PC, then on march 16 2010 there was one for the drivers for mac, but only for the navigator. No one from the 3DConnexion has answer any of this posts -or at least with a serious answer- is obvious that they don't have any plans on supporting the spacepilot pro on mac. (How long this product has been on the market?)
They are not going to say that, because that would be a very dumb strategy, but the facts seem to point that direction.
Probably I'm just being a sad pessimist, but I hope, I'm wrong, because I would really love to use my spacepilot pro on my mac (now serving as a useless but pretty bookend)