Using the same drive, no special driver needed, the drives themselves don't care if you're using OS X or Windows.
Windows just has the software built-in to play BlueRay movies, while on OS X you'll need to get software to play movies.
If you're using it to burn blue rays, rip or just read the data on the disc, OS X can do that without help.
Will any external blu-ray drive read 3D discs assuming that your computer has the requisite hardware and software for processing and outputting 3D blu-ray to a TV or projector?
Some external blu-ray drives are advertised as playing 3D discs while some are not but it seems to me that the ones advertised as playing 3D discs just come with windows software for playing 3D discs.
Since MAC users aren't able to use the bundled windows software anyway shouldn't you be able to buy any external blu-ray player and play 3D discs after downloading blu-ray player software for MAC that can do 3D?
Is there any actual hardware difference between external blu-ray drives that are advertised as 3D capable and ones that aren't?
On a thread about this player multiple people reported not being able to use it with the included usb3 cord and were only able to get it to work right after switching to a usb2 cord they already had.
No one reported success using a different usb3 cord. Did you get it to work with the included usb3 cord or another one?