I've got some stubby little fingers, so much that my guitar coach in high school told me I should quit and become a bassist (a few years later I invited him to a show so he could eat his words). I use a T61 and I love the tiny trackpad. Granted I use a trackball with it, but on my home laptop with a giant touchpad, I have to move my hand to get all the way across. On the T61, I just move my finger. It feels more precise, I think. I feel like a surgeon with a scalpel.

Granted, this is just my opinion, and when I put it down into words I realize how ridiculous it sounds. But I still prefer it.