Another one from Hack-a-day. It's just a concept so far, but the team that's behind it may be competent enough to pull it off. They're using a Kickstarter-like model to raise funds to make it. $670 buys you a pre-order if the project is funded.
an Open Source Remote Control transmitter. This is one of the most impressive looking RC transmitters we’ve ever seen. The OSRC could be great for a small UAV – just get the GPS position from the aircraft and map it with the transmitter’s screen. There’s also support for a video downlink so flying around New York City is possible with a single device.
The transmitter/receiver combo are more actually referred to as transceivers. According to [Demetris], the radios on both the ‘ground side’ and ‘vehicle side’ can talk to each other on a 115 kbps data link on the 2.4GHz band. Sending commands and getting telemetry to something we’ve seen before, but never in a single integrated package. The expected range is in the neighborhood of 10 – 40 km. The ground unit is based on a Gumstix board and has a 4.8 inch display. This really isn’t so much an RC transmitter but a computer that happens to control RC airplanes.
[Demetris] has had some success doing some professional development with Gumstix boards, so it looks like he has the skills to build a very nice R/C controller.