I've been asked to write some basic step by step instructions for one of the company execs who is shortly going to get a 3G iPad. We've got a corporate allegiance to o2, so will be using their micro SIM, and also it is a little easier to activate the o2 SIM on-device. The problem is - I can't remember the actual steps that happened when I first signed up. I think it was Insert SIM Connect to iTunes and get settings and update I get vague from here on. Do you have to go to the Celular Data section in the Settings app, or does it just prompt you? Can anyone help?