Serial entrepreneur Omar Hamoui has spent his career founding and running mobile businesses, some of which have fared better than others. He founded and ran software consulting business Vertical Blue, before mobile photo sharing GoPix Inc., and fotochatter, a mobile photo-sharing social network. Then came AdMob, one of the first and largest mobile advertising platforms, which Hamoui founded and at which he served as CEO. The company attracted Steve Jobs, who was interested in