NOTE: There is no longer a downloadable desktop app. The project is in the cloud now. See hipergeo.net and google play-gt;hipergeo, still very beta, but up and running. The Walking Tools Reference Platform APIs provide support for GPS and GPX data processing for locative art practices (such as geo-annotation, drawing and narrative), in addition to telematic geospatial performances and other experimental practices with mobile phones. Among the resources are flexible, functional Android and JavaMe GPS compass and map widgets, and a fully standards compliant J2SE package for processing GPX files. (Both parsing into our GPX data class objects, and for formatting GPX file output.) There is also a lot of experimental code the walkingtools.net project inherited from C5Corp.com, and even some current projects from the B.A.N.G. lab at the University of California, San Diego.