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Synaptics Touchpad

I use a Synaptics TM61 that can detect number of fingers on, hence not being multitouch.
cabling:

Arduino Con Test IC pin Signal
+5v 1 T22 44 +5v
6 2 T11 2 Data
7 3 T10 3 Clk
GND 4 T30 45 GND
5 N/C
6 T9 4 Left
7 N/C
8 T8 5 Right

we need ps2 library : http://playground.arduino.cc//ComponentLib/Ps2mouse
and trackpad for absolute position : http://playground.arduino.cc/Main/Trackpad