As from June 17 you can get your Apple iPhone ready for the all new iPhone OS 3.0 Software, yes below are a few simple steps on how to get your iPhone ready.
Step One: You have to have Apple iTunes v8.2 or later on you Mac or PC, Step Two: As from June 17 just open up iTunes then connect your iPhone to your Mac or PC with the USB cable, you will get a walkthrough guide on iTunes to help upgrade to iPhone OS 3.0 software.
Step Three: This is for Pay & Go customers only, you will have to change your data (APN) settings on your iPhone, you have to do this because it will allow you to get the mobile internet working, come back to phonesreview.co.uk and we will give you more information on this.
Step Four: From June 19 you can use the awesome picture messaging MMS (More info here).
If you’re a business customer or you’re on Pay Monthly once you have the new software the features will be set-up for you, things like picture messaging (MMS) from 19 June. This will all be up and running within a few minutes.
Source — O2