Here is a new foot controller that may be of interest
the SoftStep USB/MIDI Multi-touch foot controller.
5 degrees of continuous control for each pad:
X- and Y- axis, Clockwise Rotation, Counter-Clockwise Rotation and Pressure. These control sources are mappable to any MIDI or OSC destination.
http://www.keithmcmillen.com/softstep/hardware/
http://www.keithmcmillen.com/softstep/videos/#
jon
uk