Interesting idea for a backup, but I don't think it'll work out in the end at least as a primary method of directing the flight controls. A low power RF signal is extremely vulnerable to EMI and the weight savings are far too small to justify the risk. And that's just the "atmospheric" radiation. I don't know how computer savvy the terrorist crowd is, but I sure wouldn't want a hacker to be able to bring down a jet with a laptop.
By the way, how are these gadgets going to be powered? The signal is one thing, but an actuator capable of controlling the elevator is going to need a fairly large battery.