Brian Leroux, Filip Maj and company were in rare form at OSCON this morning, demoing PhoneGap, Nitobi‘s open-source mobile app development framework. PhoneGap solves two big problems for mobile developers: the number of platforms you need to develop on, and the number of app stores and distribution channels you face.

I was there, stylus in hand, to capture the broad strokes. What I didn’t get down here was the very cool experience of watching them create and launch an Android app in just a few minutes. (Thanks to a document camera, the audience watched the whole thing unfold on-screen.)