Vic Gundotra, Vice President of engineering at Google (R) and Omar Hamoui, founder and CEO of AdMob converse during the "Mobile: Where's The Money Going?" panel at the Fortune Tech Brainstorm 2009 in Pasadena, California July 23, 2009. REUTERS/Fred Prouser
Whether it’s passing up on a ticket to Woodstock or not buying Apple stock at $80 a share in January 2009, everybody has regrets.