I use web and walk, (Tmobile). I have a 3 Gcard which was fine at first, but when they upgraded somthing it went off so I put my phone in the cratch and conected via bluetooth to my pc.
Re` terms and conditions, I wouldnt take them too seriously. In my case My service started off fine, then after 6 months they cut me off along with some of my free services like Msn and other messengers. My 3 g card suddenly wouldnt work.
I called in to complain and cutting a long story short, they say when I upgraded to have a certain amount of phone calls free as well as the internet, it seems I was sold the wrong package and when they updated whatever it was they updated, mine wouldnt work at all with the 3 G card, it only worked useing my mobile as a modem, and funny enough they said this was impossible.
I got so sick and tired of calling them (no body seemed to know the facts of my contract) I just continued useing it in the manner they said was imposible