283 Megan McCarthy 07/27/07 03:34PM Filed to: Trends Trends Facebook mark pincus Mark Zuckerberg Tribe Valleywag Mark Pincus, Tribe cofounder, notes that Facebook CEO Mark Zuckerberg is becoming a fashion influencer. "At fb app dev meeting. Can't help noticing 4 guys in the room in flip flops." [Mark Pincus Blog]