I have a tMobile Hotspot account for my company, so I'm guessing I just set it up in the phone and it will work too. Pretty exciuted to try that, and glad I already have the account!
I wonder if you have to manually log on each time or at each HotSpot. Seams like it should remember the settings as each time I'm at a Starbucks I have to enter the same name/password.
Maybe the iPhone will just log on it self when I enter the store!?!?