yes you will be fine.
its sprint you have to look out for. they didn't like activating the other iPads because they are jerks
, the story was you had to submit your receipt to sprint before they would agree to activate your iPad. the iPad wasn't locked , it was just sprint wanted you to buy theirs , theres no technical difference between any of the cellular iPad airs. they like any sim , they don't care
i don't mean to shill but if you get a $20 or $40 t-mobile plan, you will get music freedom.
and if you run out of data, they just slow you down, AT&T and verizon would either shut off your
plan or charge you an overage.
i think you should at least try the 200 mb free plan to see if t-mobile would be good
you won't get roll over data unless you sign up for a post paid iPad plan
its probably cheaper and better to just stick with AT&T if you are on a share plan though
i just wanted to suggest tmo