EdRover, the location-based mobile application for school fundraising and brainchild of Stevenson Ranch resident Tania Mulry, took the top prize in the "Social Good" category of AT&T's sixth annual "Open Call — Apps for All!" competition. One winner in each of the four categories received $10,000 and exclusive marketing opportunities with AT&T. More than 80 contestants participated in this year's AT&T Open Call challenge, which is designed to identify the country's most innovative wireless applications.