Apple has confirmed that while international iPads won't work on LTE networks in Europe they will work on AT&T if brought to the United States, reports the Verge.
iPads sold internationally will be able to connect to AT&Ts LTE network when in the US with the appropriate SIM and plan.
The AT&T iPad runs on 700MHz and 2.1GHz bands. Unfortunately, most LTE networks in Europe run on either the 800MHz or 2.6GHz band.
Oh, so are you still expecting the 4G ability of the new iPad?