Screen Grabs chronicles the uses (and misuses) of real-world gadgets in today's movies and TV. Send in your sightings (with screen grab!) to screengrabs at engadget dot com. Didja hear the latest? Little Ms. Serena van der Woodsen is a closet gamer. Well, at least that's what her icon tray is saying. A screen grab from a fresh episode of Gossip Girl betrays the little busybody while she's negotiating the future of show's namesake hearsay blog over chat. No, not Steam chat -- she's obvio
