Apple co-founder, engineering whiz and certified ‘bear’ Steve Wozniak normally only tweets from Foursquare: “John Vink’s Monday dinner club. Atkins friendly here. They let you scrape off and eat just the topping! http://4sq.com/nILZSB;” “Filet and lobster. (@ Ruth’s Chris Steak House w/ @myhf) http://4sq.com/q0tLMZ” and so on.