Music score editor:edit, transpose, play, import scanned music, and print music.
generate a single sine-wave toneburst when a button is pressed
tool with allow you to create setups for your MP3 files to burn it on CD/DVD
file-management system with a search and classify interface to retrieve and play
The basics are a WebBrowser Control hosted in an application.
It is a highly portable real-time spectrum analyser for your PC and Pocket PC.