Greg is the head of mobile development at PlacePop. iPhone development has been his passion for the past two years, most notably producing Wishing Stars, a GPS-based treasure hunt game played at the Disney Parks. Before that, he worked as an illustrator for Walt Disney Imagineering, a product marketing manager at Apple Computer, and was a co-founder of Java tools developer Zero G Software. He has a passion for video games and pinball, and produced the documentary "TILT: The Battle to Save Pinball," about the demise of the world's largest pinball manufacturer.