Howdy, as the founder of the Serval Mesh adhoc networking protocols and hardware, what I would look for in a new radio is: 1. True packet radio mode, that doesn't hide the radioness of the link etc, but lets the programmer use it's strengths. 2. UART link, ideally using 3DR/RFD900 compatible connector (then we can include it directly in our existing systems, and so can others). 3. Field-flashable, but with robust protections on the boot loader, as it is not uncommon for a radio to be on the boot serial interface, on hardware that has only one serial port. 4. Support 434, 868 and 905-935MHz ISM bands. 5. Use advanced interference tolerant wave-forms, like Chirped Spread Spectrum or even something better. 6. Fully open chipset/firmware design, so that it can be truted. Anyway, poke me at paul@servalproject.org if you would like to talk further about it. Paul.