The details of the program are this. Mail for Microsoft Exchange works by downloading a client that uses the Microsoft Exchange ActiveSync protocol. This lets users sync their corporate email, contacts, and calendar information from the Exchange Server. On top of support for Exchange, Helio is also going to launch a file viewer program that will let users view Microsoft Word, PowerPoint, and Excel files on the Ocean.
The move to support Exchange--and other Microsoft products--is a big one for the little MVNO. MVNO's don't typically cater to business users. In fact, Helio's Web site even says, "We're a new mobile brand created to give young, passionate consumers the type of wireless experience we've all been waiting for." Are passionate consumers waiting for Exchange support? Whether they are or aren't, they now have it.