Merry Christmas! I have just started to try this out on my Galaxy Nexus running ICS 4.0.2. As of yet, no joy, but I have only tried a couple of Input Devices so far. (Someone else had it running on ICS so I have high hopes it will work) If it is ok for a newcomer to make suggestions, I have a couple:
1) On the Input Device list, put in the devices known to work with that Input Device setting.
2) On the gesture symbols, mark the starting point with a dot or something, maybe even a colored dot.
3) Is there some way to put in the settings a place to tap to determine that the TouchService is running? It looks like in previous posts it may take a few attempts starting and stopping, and a place to touch for immediate feedback would be nice. (I say this because as I am trying different Input Devices, I am not even sure that the service is running)