I just backed this project! Why? Because for $400, I get one of the most flexible and inexpensive SDR's on the market. Not only do I get that, I also get in-depth documentation and guides on how to use it. I've been wanting a nice SDR for some time now, ever since I saw the OpenBTS demo using the Ettus Research USRP1. Unfortunately, the USRP1 is, to me, too limited to justify the price. Additionally, there is a very steep learning curve if you're a beginner like me. I'm still interested in cell phone networks, though, and with the pending release of the bladeRF, I will finally have a chance to play around with the technology.