Meme mashup alert! This video, from the 2011 Winter NAMM Show, demonstrates how to use a Line 6 MIDI Mobilizer to connect the Rock Band 3 keyboard controller to an iPad and use it as a keytar MIDI controller.
Dig that funky music!
via HarmonyCentral
we have finally found the synthtopia-est article
The should work a Buchla in there somewhere.