One of the top Facebook executives, Chief Technology Officer Bret Taylor, has recently announced his departure from the social networking company, to start a business with his friend and Google engineer Kevin Gibbs.

Taylor's decision to leave Facebook comes almost a month after the social network's troubled IPO. The announcement is somewhat surprising because Taylor had addressed Apple's Worldwide Developer Conference
(WWDC) this week; and had enthusiastically talked about Facebook's planned integration with iOS.