The UmTRX is a dual-channel, wide-band SDR transceiver (so it can send & receive) with 1GbE connection. It is developed by Fairwaves team to be used as a transceiver for OpenBTS GSM base stations, but due to its software defined nature, it could be used for many other radio applications as well.

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If the speed of development continues at this pace and more and more people finally realize the benefits of open resources and release their projects under an open & free licence, in less than 10 years, there won't be any proprietary, patented and overly expensive, hardware-based radio left on the planet. Awesome!