NI VISA + pyVisa on Mac OS X (Snow Leopard)

Has anyone had success running pyVisa on Snow Leopard with a NI GPIB module?

Based on all of the forums I have read on NI's website, it does not appear that the combination of NI VISA and pyVisa can be done on Max OS X.

The troubling part is that NI website has the NI VISA support listed for Mac OS X. However in their support pages, they do not list OS X as a supported OS.

Any comments or help would be greatly appreciated as I would really like to get away from having to use Windows to do this software development as well as allow cross platform support.