Recently, AT&T announced new Pay-As-You-Go international data packages for netbook and laptop users. The new, 30-day plans start at 20MB for $24.99 and go all the way up to 200MB for $199.99.

A carrier's cellular data plan is based on the number of bytes transferred each month over the cell towers for Web pages, email, questions and answers (Siri, Google Now, etc.) as well as apps that ...