Mobile is the editorial theme for this issue of the OSBR. This month's authors provide an overview of how open source fits into the world of handheld mobile devices, discussing everything from the hardware to the software applications running on the device. Their discussion is not limited to mobile phones as they cover other aspects of the complete mobile system, including transmitters and receivers. It is our hope that their insights prompt you to think about open source the next time you reach for your mobile device.

In This Issue: