Macbook Pro Touchpad: Synaptics Configuration in xorg.conf

I was trying to use touchpad on Macbook Pro (4,1) in Debian 5.0 (Lenny).
By default, it does not have tapping support, and multitouch support.
Even touchpad driver was also unavailable. Therefore, I had compiled
Linux kernel 2.6.29.3 added support for Apple Macbook Touchpad Driver.
Then after booting in new kernel with NVIDIA 8600 GT driver, I have
modified the xorg.conf with following lines.

## In case, you want to revert
$ sudo cp /etc/X11/xorg.conf /etc/X11/xorg.conf.bk
$ sudo vi /etc/X11/xorg.conf

...
Section "ServerLayout"
 Identifier     "Layout0"
 ...
 # Add Synaptics Touchpad as mouse
 InputDevice    "Synaptics Touchpad" "SendCoreEvents" #"CorePointer"
 InputDevice    "Mouse0" "CorePointer"
EndSection

...

Section "Module"
 ...
 # Load synaptics driver for Macbook Pro Touchpad
 Load           "synaptics"
EndSection

...

Section "InputDevice"
 Identifier      "Synaptics Touchpad"
 Driver          "synaptics"
 Option          "SendCoreEvents"        "true"
 Option          "Device"                "/dev/mouse0"
 Option          "Protocol"              "auto-dev"
 # not using edge scrolling
 Option          "HorizEdgeScroll"       "0"
 Option          "VertEdgeScroll"        "0"

 # use two finger scrolling
 Option          "VertTwoFingerScroll"   "1"
 Option          "HorizTwoFingerScroll"  "1" # set to 0 if you don't want horizontal scrolling

 # scroll speed, lower is faster
 Option          "HorizScrollDelta"      "15"
 Option          "VertScrollDelta"       "15"

 # minimum pressure motion factor
 Option          "PressureMotionMinZ"    "10"

 # touch and untouch thresholds, higher numbers if you like to push hard
 Option          "FingerLow"             "20"
 Option          "FingerHigh"            "60" # change to 30 or 40 if you like

 # FingerPress (Integer) : Above which counts as press
 Option          "FingerPress"           "130"

 # borders based on output from synclient
 Option          "LeftEdge"              "70"
 Option          "RightEdge"             "1120"
 Option          "TopEdge"               "50"
 Option          "BottomEdge"            "750"

 # speeds, smaller number for a slower mouse
 Option          "MinSpeed"              "0.8" # 0.5 is very slow, 1.5 is very fast
 Option          "MaxSpeed"              "1.3" # up to 1.5 works ok
 Option          "AccelFactor"           "0.10"

 # tap times, change to suit your tapping habits
 Option          "MaxTapMove"            "100"
 Option          "MaxTapTime"            "100"
 Option          "MaxDoubleTapTime"      "200"

 # don't change these or two finger tap stops working
 Option          "TapButton2"            "3"
 Option          "TapButton3"            "2"

 # must be commented out or normal tapping wont work
 #Option         "TapButton1"            "0"

 # Right Top Corner Button as right click
 Option          "RTCornerButton"        "2"
 Option          "RBCornerButton"        "0"

 # Left Top Corner Button as middle click
 Option          "LTCornerButton"        "3"
 Option          "LBCornerButton"        "0"

 # Palm Detection: Useful while typing
 Option          "PalmDetect"            "on"
 Option          "PalmMinWidth"          "10"
 Option          "PalmMinZ"              "200"

 # needed for disabled while typing fix
 Option          "SHMConfig"             "on"
EndSection
...