HPSDR is an open source (GNU type) hardware and software project intended as the "next generation" software-defined radio for radio amateurs and shortwave listeners. It is being developed by a group of software-defined radio enthusiasts around the world, and in a modular hardware fashion to help promote experimentation by both hardware and software developers.
Official Website: http://oshug.org/event/5
Added by afrback on October 12, 2010