Chris Carlson will soon release Borderlands, an interactive granular sampler instrument for the iPad! It looks incredibly cool. Perfect for some IDM Music Creation ;)
"This project is a mobile version of an audiovisual granular synthesis instrument that I built as my final project for Music 256a at CCRMA. The inspiration behind the original version along with early concept sketches and design details are presented here . While the laptop version provides a large canvas and a great deal of RAM for audio files, the iPad's multitouch capabilities offer a much richer interactive experience. I extended the instrument to take advantage of these resources and added a social/networking component to allow users to share their "scenes" and download the work of others."
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