This is a demo of the iXY MIDI Controller (App Store link)for the iPhone.

Description:

iXY is the ultimate MIDI X/Y controller for the iPhone/iPod Touch. Featuring multitouch 6 axis control and an intuitive UI, iXY gives you creative on-the-fly control of your software synthesizers, DJ and VJ software.

Features:

• Use up to 3 X/Y controllers to control up to 6 MIDI parameters
  Intuitive interface with touch animations that glow under your finger tips
  iXY is now compatible with MIDI Servers from the Open Source DSMI Project

If you’ve used the iXY MIDI Controller, leave a comment with your thoughts!

via jetdaisuke