Fruit roll ups have become so popular that they've decided to expand the idea...
I was looking for a smaller MIDI controller to go on the road in the RV to use with my laptop, and I think this might be it... Not available here yet but a German website has it listed for 79 Euros (about $95 USD). Not the ideal kind of MIDI controller, but perfect for something compact to use for basic things when travelling.
Miditech Play'n Roll
This foldable bus-powered MIDI controller features 37 piano-size soft keys; MIDI channel, program change, and octave shift buttons; and a USB port for direct PC connection. Soft case and USB cable included.