Using Microsoft Exchange is the nearest thing to true push email on Windows Mobile devices, and thanks to a new free open source service, you are no longer restricted to paying an for an unreliable service or depending on your corporate email.

Funambol is a free service that uses the open source model. It replicates the workings of Microsoft Exchange and offers free exchange style email to many mobile phone types, particularly Windows Mobile.

It’s a powerful tool that goes beyond over the air email synchronization – Funambol also offers calendar and contacts synchronization.