There's also My Simple Mobile which uses GSM (using T-Mobile's prepaid network). The prices aren't as good as Virgin, but they're still better than the big 4 a

There's also My Simple Mobile which uses GSM (using T-Mobile's prepaid network). The prices aren't as good as Virgin, but they're still better than the big 4 and being GSM you can bring over any phone that works on T-Mobile 3G.