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Amateur radio is a pretty cool hobby.

You can talk, send data, morse code (YouTube: Is morse faster than SMS?), pictures, or live TV to anyone all around the world.
You can do it from your home, car, or using a handheld in a tent on top of a hill.

Well, another itch needed to be scratched.

I wanted something that would teach me morse code, and I thought the best way was just to have something on my phone, which would play random codes to me, and then tell me what they were.

Couldn't find one, so wrote my own.

I used the cwpcm program from cwtext to generate the tones, and Audacity to record my dulcet tones.

It's tested on a Nokia N80 and an N95, but will probably work on quite a few more phones.

I have written a little Java app for mobile phones with GPS that will calculate the Maidenhead Locator Grid that you are in.
This system of identifying location is used in Amateur Radio, as it cuts down on the number of characters used to encode the information, something very useful when using Morse Code.