Speaking of Eee PCs, plastibots.com has a story covering a Eee PC hardware hack that adds the trackball from Apple’s Mighty Mouse into the case for fast-action scrolling:
I found the 2-finger scrolling using the touchpad a P.I.N.T.A. . So, since it’s never my intent to leave well enough alone, and I was itching for something to take apart and hack, I decided to integrate a trackball into my EEE 901. The Apple Mighty Mouse was the best candidate becase the trackball acts like a wheel on the mouse – I can use it solely for scrolling rapidly through pages of content. Of course, there are other options out there, but its ball acts as a mouse controller (not for scrolling) and I didn’t want to pay the price. I figured the Mighty Mouse would be more of a challenge anyhow.
The mod is not for the faint of heart, but man, it is awesome.