To alert or not to alert - that is the question

Recently, the FCC in the USA has been asking for opinions on an important matter - phone bill shock.

With more people travelling overseas each year, and more people buying smartphones and using them overseas when roaming, the stories of people raking up hundreds, or thousands of dollars in charges on a trip abroad are becoming commonplace.

In Europe, there is a regulation to help European customers reduce the chance of a big bill. European phone companies are required to send a text message to customers when they hit a certain spend level when overseas.

Nothing like this exists for US customers. But should it? What do you think?