While we were in San Francisco for Macworld | iWorld, I noticed that the wait staff at Mel's Drive-in were using iPads to take orders. I hadn't seen that before, but apparently the folks at Mel's have used iPads for a while. Now an even bigger restaurant chain, Buffalo Wild Wings, is planning to deploy iPads to its nationwide locations, should an initial pilot programs fare well. Instead of issuing iPads to servers like Mel's has done, Buffalo Wild Wings will embed iPads in tables around the bar. Customers can use them to browse select apps like Facebook and