just a quick tip - not sure if many people realise:

 

on a pay monthly contract phone, once you are out of contract the provider should if possible unlock your phone for free.

 

I read about this on tinterweb a while back & phoned O2 today to get my iphone unlocked so I can pass it on.

 

quick call & they are sending a code that you put into itunes that will unlock to any network next time I plug in.

 

they said they can unlock most phones like this now once you are out of contract.

 

Just though I would share :)

I've heard this too but not via iTunes else hackers would've discovered it to unlock any iPhone !

I emailed O2 at the end of my contract, and got a text back the nex morning saying my iPhone was now unlocked. Plugged in to iTunes, did a sync and job done!

 

Once your contract with a provider is up they are legally bound to unlock your handset at your request.

good news