 On June 2nd, 2010, AT&T announced that, effective June 7, the unlimited plan would be replaced for new customers with a 2 GB plan at slightly lower cost; existing customers would have the option to keep the unlimited plan.The plans are activated on the iPad itself and can be cancelled at any time.The iPad was initially only available for purchase on Apple's online store and its retail locations; it has since become available through retailers including Amazon, Walmart, and network operators.