Yesterday's "Nano" was VIA's freshly-renamed Isaiah chip; today's is the Nano Air Vehicle, a tiny drone that flies by moving its wings instead of using propellers or jets. Graced by a half-mil from DARPA, creators AeroVironment have six months to convince the military it's good for something.
Weighing less than 10 grams and only 7.5 centimeters long, the Nano will "push the limits of aerodynamic and power conversion efficiency." The stated objectives are somewhat opaque...
The development of conformal, multifunctional structural hardware and strong, light, aerodynamic lifting surfaces/rotors for efficient flight at low Reynolds number (<15,000)
... But I can't help but remember something from that other bastion of ornithopter fandom, Dune: