Anyone using a prepaid SIM on an unlocked GSM iPhone?

[rgG]

deckeda wrote:
Anyone know if these phones on AT&T MNVOs would work on the AT&T Microcell? I'd guess not, only because it's not a branded "AT&T" phone at that point?

So, no Visual Voicemail, and MMS doesn't "work" except from another iMessage user ... anything else to be aware of?

Not sure about the microcell, but you can get MMS to work, if you jailbreak and do some tweaking. You can probably get Thanatos answer about the microcell thing over at the StraghtTalk forum at HoFo. Those people are all over all things related to the iPhone and ST.