Brade,
Thanks for asking about this. We recently entered our beta phase for NI-488.2 for Mac OS X, and I am pleased to invite you to sign up for the public beta if you are interested. To sign up, go to www.ni.com/beta and login with your profile. You will be notified if you are accepted into the beta (as of this writing, everyone who signs up is accepted).
Thanks,
Scott B.
GPIB Software
National Instruments