The foodservice industry is poised to outpace the economy for the 12th consecutive year with sales expected to reach $632 billion, a 3.5 percent increase over 2011, according to the National Restaurant Association. And restaurants will reinvest a lot of this money in technology that gives them an edge. Customers already are signing credit card bills with their fingers on touchscreens and using apps to order at fast-food restaurants. But those are just the beginning. Entrepreneurs in the foodservice industry should keep an eye on the following five innovative technologies that are improving the way restaurants do business -- in kitchens and front of the house. ...