DSComm
DSComm is a Nintendo DS multi-client which was intended to support MSN (now called Windows Live Messenger), IRC, RSS-feeds and E-Mail. However I didn't have very much time and now there are smartphones, so I'm not going to finish this up.
I got the idea after helping out with the "Beup Live" WLM-client, but the person who worked on it violated the original license and didn't share the source code (which was pretty... bad anyway), so I decided to write a multi-protocol client from scratch.
I got to the point where it had a working UI, WiFi control and automatic updates but then I didn't have time anymore and stopped working on it and now there's no point in continuing really, because smartphones. It was a fun project. Graphics loading, input handling, UI-components, etc was all written from scratch, so I learned a lot about developing for the DS.