I have wired and wireless tethering working. Using Gummynex 0.3.0 with Lean kernel 1.1. I do have SDK installed on my machine and when rooting I did install Samsung drivers from 2 different locations. When I turned on wired tether in Settings my Win7 pc said "installing new hardware" and then it installed successfully. Don't know if it installed successfully because I had all that crap installed prior or if the OS and phone already had the drivers built in. None the less, it works with that ROM.