Microsoft Corporate Vice President Joe Belfiore (L) listens as actress Jessica Alba speaks during a Windows Phone 8 product launch at Bill Graham Civic Auditorium on October 29, 2012 in San Francisco, California. The Windows Phone 8 marks the Seattle-based company’s latest update from its two-year-old Windows Phone 7 platform as the company looks to regain its traction in the increasingly dense smartphone segment dominated by rivals Apple and Google. Click on the image above to view more photos