Teaching a course on App Inventor? This site provides a framework for doing so. David Wolber from the University of San Francisco has taught introductory CS for non-majors (CS0), but the materials could be adapted for a CS1 course for majors as well, or for a high school course. You can also pick and choose from the seven available modules, or just give a two or three week intro to App Inventor with the introductory modules.