He is a Professor of Computer Science at Cal Poly in San Luis Obispo, a consultant and trainer with Simex, and co-founder of Steadfast Innovation, LLC, creators of the Squid (formerly Papyrus) natural note-taking app.
David received his PhD in Computer Science from the University of Kansas (Rock Chalk Jayhawks!)
David has been teaching Android app development since early 2010.
He contributed the Android labs created with his very competent graduate student, James Reed, to Google Code University where they received over 300K pageviews in the first year.
None of them are as successful as Angry Birds, but Squid, his Android note-taking app with Steadfast Innovation, LLC is well on its way.