_Framework: An Introduction to the Ableton Framework Classes
“Documentation for the Ableton Live MIDI Remote Script _Framework classes, based on decompiled Python sources and docstrings.”
Someday.
OSCulator: Use your iPhone or iPod with Ableton Live
Basic setup instructions.
Ableton Forum: DIY Ableton Foot Controller Build Thread
Awesome. Would be a fun project to try.
KORG Nano Series Controllers
Small MIDI controllers. Glorious.
iTouchMidi
Very neat MIDI controller iPhone apps.