I have a friend that wants to use his Mac to tether, but wants to know what devices are currently capable of tethering w/ a Mac before he invests in a device. So what devices are capible? I did find an article on the web about tethering a Samsung Blackjack but thats all I found so far. Figured I'd get this done faster posting here. Thanks ahead for any help.

Edit: someone? anyone? please?