Open Source Routing Machine - C++ backend
Builds Garmin maps from OpenStreetMap
GPS track editor for editing tracks and planning (multiple) day tours
An information system for cyclists in Berlin and Brandenburg
Library for OpenStreetMap offline rendering and routing
C# class library for processing OpenStreetMap data
Source code for ArcGIS Viewer for Flex - a great application framework
See you and your friends on a map
Simplistic templace header for c++ based pathing or routing.
Basic routing and spatial functions using OpenStreetMap data
OsmSharp - OpenStreetMap (OSM) Library and Tools developed in C#