We are planning to upgrade from using several different arduinos to using one Beagle Bone Black to control all the different sensors on our payloads. This would reduce weight and increase functionality. Furthermore, we are planning to use a flight computer to display data during the flight as the beagle bone black receives them.

Links:

Connect temperature sensor to Beagle Bone Black:
http://learn.adafruit.com/measuring-temperature-with-a-beaglebone-black/overview

for GPS and radio telemetry:
http://andicelabs.com/beagledrone/