BladeRF SDR on Kickstarter
A new open source SDR hardware:
300 MHz to 3.8 GHz full duplex with 20 MHz real-time bandwidth over USB3. I signed up at $400 to get one, after having some experience with GNU Radio and the USRP. Should be fun to play with.
Seems interesting. Maybe external amps can be used or high dbm antennas to do things the part 15 users can't do.
I just pledged $400 myself. They've already reached their pledge goal of $100,000.