We just got our ipad4 cellular and are wondering when it comes to data only sims, is there any such thing as a simple top up pay as you go plan by any provider? We live in the UK. Basically, wont be using lots of data, so all we were wanting to do is stick a sim in, top up Â£10 or something like that which probably equates to say, 1gig of data, and just have that 1gig to use, with no time limit, then top up more either when its ran out, or when its low, then top up and just have it added onto whatever we had left, just basically like old pay as you go phones used to work? Can anyone advise if this is possible or if not, what the next best thing will be? The choice of sim deals out there is bewildering, but we cant seem to see one that matches the above. Many thanks in advance.