Although musicians were quick to pick up on the iPad's possibilities as a control surface, the audio production corner of the App Store is still overwhelmingly devoted to things like guitar amp models and soft synths -- that's because until recently there was no way to send MIDI commands from iOS (not that some folks didn't figure out workarounds). That's why we were excited to hear about the appearance of MIDI APIs in iOS 4.2. What does this mean for all of you would-be Brian Enos? The gang over at Create Digital