Omar Hamoui founded mobile ad network AdMob in 2006 and sold it to Google earlier this year for $750 million. Now he’s sitting pretty at Google, where he has been named vice president of mobile ads. Hamoui spoke on the second day of VentureBeat’s MobileBeat 2010 conference this week in San Francisco and answered questions about the mobile ad trade. He talks about the effectiveness of mobile ads, among other things. Here’s a video excerpt of the Q&A after Hamoui’s talk. Both audience members and CNBC reporter Jon Fortt asked the questions.