Apple added the ability to connect custom hardware to its iPhone and iPod touch platform last year, so it was only a matter of time before someone made a music hardware interface. Ion Audio, the budget brand of Numark/Alesis/Akai, gets there first, with the Ion iDISCOVER Keyboard. It docks your Apple mobile into a case with a 25-key MIDI keyboard, pitch and mod wheels, and preset buttons for patch and octave changes.

http://www.ionaudio.com/idiscoverkeyboard

It’s just what many of us wondered when we first saw Apple’s hardware SDK; David Battino even suggested this very idea.

Of course, there is a slight problem. Part of the whole advantage of the iPhone is its mobility, which a huge honking dock tends to kill. (For less money, you could just plug a keyboard into your Mac, or buy a low-end CASIO or Yamaha keyboard.)