Xorg settings for the Synaptics driver on my Macbook Air (with tapping)

Section "InputDevice"
	Identifier	"Synaptics Touchpad"
	Driver		"synaptics"
	Option		"SendCoreEvents"	"true"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"auto-dev"
	#Option		"CorePointer"

        # exclusive grabbing of device
        Option		"GrabEventDevice"	"1"

        # simulate right button
        Option		"MultiFingerButton"	"2"

        # 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"      "0"
        Option          "VertScrollDelta"       "40"

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

        # touch and untouch thresholds, higher numbers
        # if you like to push hard, change to 30 or 40
        Option          "FingerLow"             "16"
        Option          "FingerHigh"            "80"
        Option          "FingerPress"           "256"

        # palm detect
        Option          "PalmDetect"             "0"
        Option          "PalmMinWidth"           "10"
        Option          "PalmMinZ"               "200"  

        # borders based on output from synclient
        # controls the edge scrolling
        # turned off by specifing the exact size /henrik
        Option          "LeftEdge"              "0"
        Option          "RightEdge"             "1280"
        Option          "TopEdge"               "0"
        Option          "BottomEdge"            "800"

        # speeds, smaller number for a slower mouse
        Option          "MinSpeed"              "0.8"
        # 0.5 is very slow, 1.5 is very fast
        Option          "MaxSpeed"              "1.2"
        # up to 1.5 works ok
        Option          "AccelFactor"           "0.10"

        # tap times, change to suit your tapping habits
        Option          "MaxTapMove"            "100"
        Option          "MaxTapTime"            "223"
        Option          "MaxDoubleTapTime"      "200"
        
        # don't change these or two finger tap stops working
        Option          "TapButton2"            "3"
        Option          "TapButton3"            "2"
        #Option          "TapButton2"             "0"
        #Option          "TapButton3"             "0"

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

        # not using corner buttons
        Option          "RTCornerButton"         "0"
        Option          "RBCornerButton"         "0"
        Option          "LTCornerButton"         "0"
        Option          "LBCornerButton"         "0"  

        # needed for disabled while typing fix  
        Option          "SHMConfig"              "true"

EndSection