http://www.wiretotheear.com/2010/04/02/ ... -for-ipad/
It's actually in the AppStore right now. So it's no April fool joke.
Imagine the next obvious step which must be inevitable:
Apple expands the audio plugin GUI capabilities so that you can control any of the audio plugins on your iPad screen using the plugin's own GUI. No more irritating midi controllers which suck at what they do. The future is here. Imagine if (when?) you could use several iPads at the same time to control different softsynths, eq's, drum machines, compressors, etc. at the same time

