Many restaurant are checking Twitter while you are in their restaurant. Michael White (from Marea, on another panel) even mentioned changing a chair when someone complained about it on Twitter during dinner. Many of them see it as a great tool for being able to listen to what your guests are saying.
The Star Studded Chef’s panel was amazing and featured Chefs Daniel Boulud (Cafe Boulud, Bar Pleides, DB Bistro Moderne, Bar Boulud and DBGB Kitchen) and Jean-Georges Vongerichten (26 restaurants including Jean-Georges) and Michael White (Marea, Alto and Convivio). Even if you’re not a foodie you’ll definitely know that these are major players by their restaurants).