3G iPhone Activation

I have a 2G iphone unlocked etc on Virgin... but i want to get my Gf a 3G iPhone for Crimbo.

My Question is:

She has a O2 sim already and doesnt want the contract, if i get the phone from the store without taking out the contract can i then activatie it (not unlock it as i know that cant be done) allowing me to insert her sim card and use as normal?

Obviously using Quickpwn etc

Also do them sim card caddys work? i may upgrade to a 3G if i can activate it and use one of them :)

You need to take out the contract now with the phone i think mate. so no way around it unless on pay and go

But say if i could get the phone only does quickpqwn activate it?

yes mate but if you do this you might be at risk messing the baseband up so you might not be able to update it later on in its life.

If she is on O2 then can't you just buy it on PAYG and activate it like you normally would without needing to pwn it etc?