Fueled by catalysts including the economic downturn, the rise of social media and a growing consumer appetite for more diverse and creative cuisine, food trucks are seemingly everywhere, expanding from their traditional stronghold in major metropolitan cities to serve foodies across the country. Ross Resnick founded Roaming Hunger in mid-2009 to capitalize on the food truck renaissance. Beginning with about 250 food trucks in all, the service tracks more than 2,500 trucks across the U.S. Vendors add their business to the site, and Roaming Hunger leverages Twitter updates, calendar information and related data to keep users up to date on their movements and menus. This month, Roaming Hunger issued an overhauled version of its free app for Apple's (NASDAQ:AAPL) iOS platform--iPhone and iPad users can map the location of nearby trucks, sort their favorites, share comments and reviews, upload photos of favorite meals and even order food for immediate pickup at the window. FierceDeveloper contributor Jason Ankeny spoke to Resnick about the Roaming Hunger concept, food trucks' popularity and the importance of customer feedback. Developer Workshop.