Time Warner Cable (www.timewarnercable.com) Mobile Services launched American Roamer's (www.americanroamer.com) CellMaps application. The customized app is designed to allow TWC to provide accurate, easily accessible and interactive Internet-based North American coverage maps for its mobile customers.With the CellMaps app, TWC mobile customers can check service availability by using a zoom function for local or regional views, including detailed street-level data; click-and-drag navigation; and the ability to search for 3G and 4G service. TWC will also use the app for CSRs to query customer addresses and determine TWC coverage and available service offerings.