PMBA is a project mainly written in OBJECTIVE-C and C, based on the MIT license.
Philadelphia Mountain Biking Association Trail Conditions
This application provides a simple interface for viewing the current Wissahickon Valley Park trail conditions at http://phillymtb.org on an iOS device.
It hasn't been updated since XCode 3.x and iOS 4.0. Also, the interface has not been optimized for the iPad. It does support Retina Display.