Swapping a sim over from 1 iPhone to another

[Leather]

I've got a 3gs 16 gig iPhone on an O2 contract. I've got the chance of getting a 32 gig 3gs no contract. Would I be able to just swop my 16 gigs sim over to the 32 and carry on with the contract in that iPhone or does O2 not allow this? Also what are the best options for an O2 payg sim. Thanks in advance.

[maltloaf]

Yes you can just put your o2 contract sim in the new iPhone and it will work, providing it's not blocked (lost or stolen)

as for pay and go, I think the best deal at the moment is the o2 text and web sim. Top up £15 and get unlimited texts and 500MB Internet and use your £15 for calls. I've had this in my iPhone for a month and it works well.

[Leather]

Thanks for the info Malty

[lithho]

i have a 32 gig 3gs phone, and a smasung tocco, both pay monthy, both sims work fine in the i phone