GPS Chartplotter software for Windows:  Mobile or XP

Make a spare chartplotter from old gadgets and maps. For navigation and
programming hobbyists. Many suitable Gps units use Bluetooth connection to
deliver virtual serial Gps data.
Pros:
- Use your (phones) camera to get a picture of your chart/map, or use scanned maps
- No Internet or phone connection needed when navigating.
- Free download (chartplotter.cab, 73.9KB) for Windows Mobile,
(PlotrSetup.msi, 343KB) for laptop/Windows XP
Cons:
- Only basic functions: position on chart/map, speed in knots and course (true)
- Accuracy depends on calibration
Hardware needed:
- Windows mobile phone/PDA (Works fine with e.g. Qtek S200) or laptop
- GPS receiver connected via Bluetooth or USB
Software needed:
- Windows Mobile 5.0 or WinXP, Chartplotter Application : Download Page

Morse code to MIDI ringtone generator

Convert your message to morse code and save it as a *.mid file,
playable on most mobile phones. Free download