Originally Posted by nd_eric_77
T-Mobile; I am too cheap to sign up for their ISP though.
But..... if you don't sign up for one of the data plans (which includes ISP) you're stuck paying minutes, not to mention that you'll be on a modem (voice) connection and not on a data (probably GPRS) connection.
By the way..... I use this setup all the time. I'm on Cingular, and I did it via a dongle and my phone till I put a bluetooth card in my laptop. I'm limited to 115.2kbps (or slower depending on signal strength), but it works when I can't get a wifi connection.