Twitter Chatter: Facebook: You’ve No Right To Export Email Addresses (Unless It’s To Yahoo & Microsoft)

Facebook: You’ve No Right To Export Email Addresses (Unless It’s To Yahoo & Microsoft)
Is Facebook being two-faced?  Seems to be true when it comes to Facebook and Google getting along.  The on-going feud between the two makes it impossible to export email address from Facebook to Google.  However, exporting to Yahoo and Microsoft is not only allowed, but encouraged by Facebook.