Why would anyone use an iPad specific tariff? the iPad is unlocked so just get a normal data tariff
eg
the o2 simplicity iPhone tariff is £15 a month and has unlimited data it isnt a contract but it is a monthly payment! just cut the sim down and put that in the iPad. yes your also getting call and text message but the data aspect is better than the iPad deals
if you want complete pay as you go then choose one of the 3g mobile data stick deals even they are cheaper than these pointless ipad deals[
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