Guitar Apprentice: a legit iPad guitar

I've been saying it for almost three years now...the iOS app ecosystem has truly changed the music industry. Nearly everything you needed to do in order to be a working musician you could do in some way with your iPhone/iPod/iPad.
And that was before the core MIDI spec was rolled out.
Now, with the ability to hook up MIDI peripherals, iOS-powered instruments are impacting music performance too, as ION's new Guitar Apprentice shows in the video above. It cuts out the need for a MIDI breakout box, and gives guitarists a unique way to record and perform for relatively little money ($99).