The Best App Developer Is Working For Facebook Now (Updated)Mario Aguilar4/16/13 12:34pmFiled to: FacebooktweetieletterpressLoren Brichtermike matas36EditPromoteShare to KinjaToggle Conversation toolsGo to permalinkAccording to a tweet by Facebook product designer and UI guru Mike Matas, his team is now working with influential app designer Loren Brichter. That's right, the man behind Tweetie and Letterpress is now working for Facebook.AdvertisementWe don't yet know the full nature of Brichter's relationship with Facebook—whether he has come on as a full-time staffer or if he's just consulting (we reached out to Brichter to find out). Either way, it's a huge win for the social network as it tries to make mobile moves. [Twitter via FWD]Update 3:56PMAdvertisementBrichter got back to us but declined to comment on the nature of his relationship with Facebook. I guess we'll have to wait and see!