Do any of you have experience building an autopilot with a Gumstix module? I know the idea has been thrown around before, but I haven't seen much real discussion about it. I'm torn between the KISS philosophy and the idea of just having room to experiment (ie Arduino/ATMega vs. Gumstix).
One intriguing use for a more robust processor is the ability to attach a USB webcam or special-purpose CCD camera. However, I know the limiting factor for beaming back to the ground is still radio speed. Also, there is the added complexity of setting up the Gumstix environment, plus the microcontroller probably needed to deal with analog signals.
On the other hand, I would like to build a UAV platform for experimentation, ie attaching different sensors and modules and trying out different configurations. In this sense, it seems like using a Gumstix-level processor up-front would save me time and money later, since I would already know how to use it when I wanted to do more powerful things.