Trekbuddy is a J2ME application to be used with a GPS receiver. It is designed to work with every Java-enabled device.
It features capabilities such as

1. GPS tracking and simple navigation
2. bitmap maps (without zoom, you can store bitmap maps with different resolution instead)
3. arrange maps as atlas for increasing and decreasing resolution
4. trackloging in NMEA or GPX format
5. compas screen (HPS)
6. cockpit screen (CMS)
7. location sharing via SMS with other trekbuddies

and more.

It supports most commonly used map projections and grids, such as

1. Latitude/Longitude
2. Mercator
3. Transverse Mercator
4. Universal Transverse Mercator
5. Swedish Grid
6. British National Grid
7. Irish Grid
8. Swiss Grid
9. Lambert France I-IV

as well as custom datums.

As a location source

1. bluetooth or serial port GPS
2. internal (integrated) GPS
3. NMEA file
4. O2 Germany network

may be used.

Changelog:
0.9.74 (02.03.2008)
- new CMS variables {wpt-coords}, {snr0}…{snr11} and support for background images (<screen background=”my_nice_bg.png”…) - MaleSmurf is bringing new CMS soon
- wpt recording on PDA fixed
- dd.ddd lat/lon format is now supported in waypoint form (Enter Custom, etc)
- added HGE-100 location provider to make beginners life easier
- subtle serial/bluetooth channel performance (and stability?) improvement
- tar-ed maps on S60 should be a bit faster (not final solution, though )
- OSD alpha configurable
- minor improvements of maps/layers switching in atlas

Download :

trekbuddy_v0.9.74_J2ME.zip (221 KB)