So 24-year-old Facebook CEO Mark Zuckerberg is currently in Tokyo, where he's presiding over the launch of a Japanese language version of the social networking service as well as issuing half-hearted denials in response to persistent rumors that Microsoft has its sights set on acquiring the company outright. (The software giant already owns a $240 million stake which overvalues the company at $15 billion.) Could it be that he's also skirting some questions and pleas raised by soon-to-be outgoing staffers he considers friends?