endless amount of Nintendo DS hacks already in the wild is TobW's DS Sampling Keyboard, which "uses the DS's microphone and touchscreen" to interface with a software-based sampling keyboard. A close contender to join our Music Thing series, this wonderous hack takes advantage of the wee machine's excellent X / Y-axis controls as well as its built-in WiFi to beam the MIDI commands wirelessly. The program has been tested with Wifi, GBAMP, and M3, so "it should work on pretty much anything," and provides a much less expensive alternative to those dedicated offerings. While musical gizmos are always more effective when
seen heard rather than just heard about, be sure to click on for a front row seat to the YouTube demonstration.