I'm not so sure that ePass is Windows only. If it's the system I'm thinking of (it wasn't called ePass at the time), I worked on it. I used to work for Entrust. Entrust designed the ePass system with the government using Entrust TruePass (for which I was the prime). TruePass has worked in the past, and to my knowledge still works, with IE on the Mac. Netscape is a no go, just because Netscape sucks. I'm not sure about Safari, but I'm pretty sure it won't work either, since it wasn't around when TruePass was developed.