[delinquentwoody]

just a quick question if anyone could help me out it would be much appreciated. would an o2 3g sim card work in a non 3g o2 phone or will it only work in a 3g phone? thanks

[Ben]

I believe an O2 3G SIM will work in a 2G phone, but I actually haven't tried so don't know for sure. I can't see any reason why it wouldn't.

[Hands0n]

I have used my same O2 SIM in both my 2G and 3G iPhone.