Ubuntu touchpad settings - http://www.x.org/archive/X11R7.5/doc/man/man4/synaptics.4.html

_Adaptive Deceleration to 2

#Lenovo
xinput set-prop 11 264 2

#Dell
xinput set-prop 'AlpsPS/2 ALPS DualPoint TouchPad' 'Device Accel Adaptive Deceleration' 2

_Setting Synaptics Move Speed

#values: MinSpeed, MaxSpeed, AccelFactor, TrackstickSpeed

#Lenovo - Lower min speed to .75
xinput set-prop 11 278 0.75, 1.735, 0.013, 0

#Dell - Lower min speed & AccelFactor
xinput set-prop 14 293 0.75, 1.750000, 0.0785, 0.000000
xinput set-prop 14 293 0.75, 1.75, 0.030,0
xinput set-prop 'AlpsPS/2 ALPS DualPoint TouchPad' 'Synaptics Move Speed' 0.75, 1.75, 0.030, 0
xinput set-prop 'AlpsPS/2 ALPS DualPoint TouchPad' 'Synaptics Move Speed' 0.5, 1.75, 0.030, 0

Dell - Default settings

Device 'AlpsPS/2 ALPS DualPoint TouchPad':
        Device Enabled (135):   1
        Coordinate Transformation Matrix (137): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
        Device Accel Profile (258):     1
        Device Accel Constant Deceleration (259):       2.500000
        Device Accel Adaptive Deceleration (260):       1.000000
        Device Accel Velocity Scaling (261):    12.500000
        Synaptics Edges (281):  300, 1700, 210, 1190
        Synaptics Finger (282): 12, 15, 0
        Synaptics Tap Time (283):       180
        Synaptics Tap Move (284):       107
        Synaptics Tap Durations (285):  180, 180, 100
        Synaptics Middle Button Timeout (287):  75
        Synaptics Two-Finger Pressure (288):    141
        Synaptics Two-Finger Width (289):       7
        Synaptics Scrolling Distance (290):     -48, -48
        Synaptics Edge Scrolling (291): 0, 0, 0
        Synaptics Two-Finger Scrolling (292):   1, 1
        Synaptics Move Speed (293):     1.000000, 1.750000, 0.081934, 0.000000
        Synaptics Off (294):    0
        Synaptics Locked Drags (295):   0
        Synaptics Locked Drags Timeout (296):   5000
        Synaptics Tap Action (297):     2, 3, 0, 0, 1, 3, 0
        Synaptics Click Action (298):   1, 1, 0
        Synaptics Circular Scrolling (299):     0
        Synaptics Circular Scrolling Distance (300):    0.100000
        Synaptics Circular Scrolling Trigger (301):     0
        Synaptics Circular Pad (302):   0
        Synaptics Palm Detection (303): 0
        Synaptics Palm Dimensions (304):        10, 100
        Synaptics Coasting Speed (305): 20.000000, 50.000000
        Synaptics Pressure Motion (306):        15, 80
        Synaptics Pressure Motion Factor (307): 1.000000, 1.000000
        Synaptics Resolution Detect (308):      1
        Synaptics Grab Event Device (309):      1
        Synaptics Gestures (310):       1
        Synaptics Capabilities (311):   1, 1, 1, 1, 1, 1, 0
        Synaptics Pad Resolution (312): 1, 1
        Synaptics Area (313):   0, 0, 0, 0
        Synaptics Noise Cancellation (314):     12, 12
        Device Product ID (252):        2, 8
        Device Node (253):      "/dev/input/event7"

Dell - Startup Command

xinput set-prop 'AlpsPS/2 ALPS DualPoint TouchPad' 'Synaptics Move Speed' 0.7, 1.75, 0.030, 0 ; xinput set-prop 'AlpsPS/2 ALPS DualPoint TouchPad' 'Device Accel Adaptive Deceleration' 2

Lenovo - Default settings

Device 'SynPS/2 Synaptics TouchPad':
        Device Enabled (139):   1
        Coordinate Transformation Matrix (141): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
        Device Accel Profile (262):     1
        Device Accel Constant Deceleration (263):       2.500000
        Device Accel Adaptive Deceleration (264):       1.000000
        Device Accel Velocity Scaling (265):    12.500000
        Synaptics Edges (266):  1751, 5191, 1624, 4282
        Synaptics Finger (267): 25, 30, 0
        Synaptics Tap Time (268):       180
        Synaptics Tap Move (269):       222
        Synaptics Tap Durations (270):  180, 180, 100
        Synaptics ClickPad (271):       0
        Synaptics Middle Button Timeout (272):  75
        Synaptics Two-Finger Pressure (273):    282
        Synaptics Two-Finger Width (274):       7
        Synaptics Scrolling Distance (275):     -101, -101
        Synaptics Edge Scrolling (276): 0, 0, 0
        Synaptics Two-Finger Scrolling (277):   1, 1
        Synaptics Move Speed (278):     1.000000, 1.735000, 0.013000, 0.000000
        Synaptics Off (279):    2
        Synaptics Locked Drags (280):   0
        Synaptics Locked Drags Timeout (281):   5000
        Synaptics Tap Action (282):     2, 3, 0, 0, 1, 3, 0
        Synaptics Click Action (283):   1, 1, 0
        Synaptics Circular Scrolling (284):     0
        Synaptics Circular Scrolling Distance (285):    0.100000
        Synaptics Circular Scrolling Trigger (286):     0
        Synaptics Circular Pad (287):   0
        Synaptics Palm Detection (288): 0
        Synaptics Palm Dimensions (289):        10, 200
        Synaptics Coasting Speed (290): 20.000000, 50.000000
        Synaptics Pressure Motion (291):        30, 160
        Synaptics Pressure Motion Factor (292): 1.000000, 1.000000
        Synaptics Resolution Detect (293):      1
        Synaptics Grab Event Device (294):      0
        Synaptics Gestures (295):       1
        Synaptics Capabilities (296):   1, 0, 1, 1, 1, 1, 1
        Synaptics Pad Resolution (297): 85, 60
        Synaptics Area (298):   0, 0, 0, 0
        Synaptics Noise Cancellation (299):     25, 25
        Device Product ID (257):        2, 7
        Device Node (258):      "/dev/input/event4"