It does have a Mac driver, but it doesnt seem too crapware-ish (unlike what the Windows driver, which looks like a pile of ****, according to the manual).
It works! Works well, even.
Decent speeds, often better than what I get over WiFi from public hotspots.
So now crappy airport wifi with login pages, cafes that turn the wifi off, public connections that impose their own ads and popups, and client sites with paranoid overcontrolling outbound firewall blocks can just Kiss Off.