When travelling it is always a great idea to have an unlocked mobile phone but this can turn out to be expensive especially if have an iPhone. You need an unlocked mobile to take advantage of local PAYG and even contract deals that can give you lower cost calls and, more importantly, lower cost data. Some good news though has come out regarding T-Mobile in the Netherlands, if they are your provider, in that they will now allow you to unlock your phone – after all, they still have you in their clutches with regard to the contract.

This has already been the case with O2 in the UK for some time. The method is a little different from a normal phone in that at the end of the messaging from O2 (and probably so for T-Mobile in NL) then you need to re-activate the mobile phone with iTunes with the new SIM in the device, with the extra fuss with needing to have a microsim for the iPhone 4.

So if you want to unlock your O2 UK iPhone, you need to go to the special section on the O2 website and follow the instructions in full.