I just figured out the ps2 pinout for a spare touchpad out of an Itronix Gobook. Thw functions of each of the 4 colored wires are different from every ther example I have found thus far, so I did some tracing with the help from the following links (some of this info has been covered in other threads on this topic):
IC=Synaptics T1004 0211
These colors represent the connector to the motherboard, not the ribbon cable between the touchpad board and the button board.
Thanks to this community for all the great info, and I hope this info helps someone!