From a Wired article;
"...the agency (
FAA), that supervises everything from air-worthiness to passenger gadget use has taken legal action for the first time against an on-ground pilot an operator of a styrofoam, 4.5-pound
Ritewing Zephyr-powered glider. The
$10,000 levy (.pdf) invokes the same code section that governs the conduct of actual airline-passenger pilots, charging modeler
Raphael Pirker with illegally operating a drone for commercial purposes and flying it in a careless or reckless manner so as to endanger the life or property of another.
http://www.wired.com/threatlevel/201...-a-crossroads/
..first I've also heard of FAA sending out cease and desist letters to commercial operators.