<img src="http://tctechcrunch.files.wordpress.com/2010/02/fb-mobile-1.jpg" />Yesterday, in a session on 'Mobile Communications 2.0' at the Mobile World Congress in Barcelona, Facebook's VP of User Gro
<img src="http://tctechcrunch.files.wordpress.com/2010/02/facebook-zero.jpg">
At the Mobile World Congress 2010, Facebook's Chamath Palihapitiya just finished a 20-minute keynote, outlining the socia