OS Map is a new Android application that allows you to view Ordnance Survey maps on your phone. Utilising your phone GPS, location is pinpointed on the map with full touch control allowing you to pan the map.
OS Map uses the OpenSpace API so there are no additional map fees but the maps do require a data connection and cannot be viewed off-line.
All OS Map scales are available from 250k down to 25k with waypoints, grid references and magnetic compass. The map is North up but the on screen compass points North allowing you to orientate yourself and the map.
A v1.1 update is due within a few days that will add enhanced waypoint support and bearing to a selected waypoint
Available from the Android Market for £4.99.