Tim Place and co have been very bus developing Tomas Henriques’ Meta-EWI, an extended AKAI EWI, with a bunch of additional sensors augmenting the breth and key sensors of the original instrument.
The META-EWI has the following extra sensors and actuators:
4 Force Resistance Sensors (4 CC)
1 Accelerometer with Tilt detection (providing 2 CC)
1 Joystick (providing 2 CC)
16 On/Off tactile switch buttons
There is information on the above site about how these additional resources are used.