With the introduction of the new iPad, the 4G LTE data plans cost and how they would work was not made clear. Just yesterday, it was clarified that Verizon would support the mobile hotspot functionality in the iPad data plans. AT&T will not for now though.
Yesterday, SlashGear pointed out that the WiFi + 4G iPad announced by Apple on Wednesday will not be compatible with LTE networks under development in most of the launch countries. The LTE discussion during the media event focused on five carriers in the US (AT&T and Verizon) and Canada (Bell, Rogers, and Telus). It was also noted that international markets would have other options available for cellular connectivity.
An issue with the international LTE availability comes from the fact that AT&T’s version of the new iPad released in the US support LTE on the 700 MHz and 2100 MHz frequency bands. However, Apple is distributing those same models to its international markets, but LTE infrastructure in most of those countries are utilizing 800 MHz, 1800 MHz, and 2600 MHz bands that are not support by the device.
Now, Apple has confirmed to The Verge that those international 4G iPad models can be used on AT&T’s LTE network in the United States by travelers, even though they will not have LTE support at home. Apple says:
iPads sold internationally will be able to connect to AT&Ts LTE network when in the US with the appropriate SIM and plan.