People have been attaching cameras to model rockets, model airplanes, model helicopters, kites, and balloons for decades. Model blimps, dirigibles and Zeppelins? Have I forgotten anything? Probably somebody has attached one to the payload of a home-made catapult at some point.
Probably on day 2 after the first successful launch.
"I never allow myself to become discouraged under any circumstances. I recall that after we had conducted thousands of experiments on a certain project without solving the problem, one of my associates, after we had conducted the crowning experiment and it had proved a failure, expressed discouragement and disgust over our having failed 'to find out anything.' I cheerily assured him that we had learned something. For we had learned for a certainty that the thing couldn't be done that way, and that we would have to try some other way. We sometimes learn a lot from our failures if we have put into the effort the best thought and work we are capable of." - Thomas A. Edison, 1921
Wow. This story is all over the place. /., CNet, Gizmodo, Engadget, Yahoo!, here of course, Ars, El Reg, The Next Web, gigaom, OSNews, hacker news, techmeme, digital trends, lifehacker, wired news, techcrunch, neowin, TUAW... several of them have multiple articles, and that's just what I see in a single snapshot of Freshnews.