Is IBM ThinkPad pointing stick scrolling (blue button) possible in Linux? Or with touchpads?

[Jason Spiro]

IBM ThinkPads have classically come with three mouse buttons.

- The two normal buttons, which are red
- The small middle button, which is blue

The blue button is generally used for pointing stick scrolling. Press
or hold the blue button and the pointing stick in the middle of the
keyboard becomes an *analog* scroll wheel.

It is a superb feature. Although it doesn't work in all apps, it lets
you smoothly scroll through documents in Word, IE, etc. with analog
control. The harder you press the stick, the faster you go.

Is there a way to get this to work on Toshiba laptops in Linux when I
press the fourth mouse button?

Also, would it be possible to get a simulation of this feature on a
Dell Inspiron 1100 with a Synaptics touch pad and the Xorg Synaptics
driver? (e.g. finger in middle of pad = no scrolling, the farther you
move it from the middle, the faster it goes)

Please CC me on all replies.
Regards,
Jason

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