This is gpsdisplay, a small application using OSM data in a PostGIS database
(as usual named "gis") and rendering them via Mapnik. It'll read the current
location from GPSD, using DBus' system bus to access it.

Keyboard control:

	Up:	Move card up.
	Down:	Move card down.
	Left:	Move card left.
	Right:	Move card right.
	Plus:	Zoom into card.
	Minus:	Zoom out of card.
	Dot:	Force a redraw right here, right now.
	g/G:	Enable/disable location updates from GPSD, useful
		in case you want to use cursor control to move
		around in the map.
	p/P:	Add a PoI to the GPX file IFF --gpx was given at
		startup time.
	b/B:	Add a call to the OpenStreetBug submit script.
		(Requires --bug-file and --bug-user.)
	i/I:	Print some infos regarding current position and
		distance to target.
	v/V:	Toggle verbose output.
	T:	Toggle validity of target coordinates.
	t:	Set current position as target coordinates.
	s/S:	Toggle visibility of the GPS track.
	c/C:	Clear GPS track (delete all in-memory fixes)

--20080924, Jan-Benedict Glaw <jbglaw@lug-owl.de>
