Ive been trying to get on with Virgin Mobile too. For me, it wont work with my phone, 3G; simply because Virgin Mobile does not utilize SIM cards, with thier phones. So for me, there's no point in going further, until a way aroung the SIM card issue is resolved.
Any ideas out there how to get on with Virgin Mobile?
Virgin Mobile USA with IP4 GSM - no. They run under Sprint CDMA as mvno. If you have a CDMA iphone 4, then you can try to have Sprint add the ESN into their database, but I don't think they are going to do it.