The latest version of NitroTracker(v0.4) my favourite Nintendo DS homebrew is out at last.

Here is a list of some of the changes(from the NitroTracker website)

* wav saving
* free ram indicator
* sample preview
* the file browser remembers recent folders and files
* improved xm player
* volume column editing
* sample panning
* improved left handed mode

NitroTracker is a homebrew software application that allows you to make music on the Nintendo DS.

Link