Just reading the responses here - am I the only person who has zero problem using a trackpad and keyboard with my hands for >=8 hours a day? Maybe it's that I'm not a designer and so the precision of my motions isn't such that I'd experience problems like this. I think the only problem I've ever had was back when I tried using a Microsoft Natural keyboard, and my hands were sore after an hour.

Also, good for her, finding a solution that works well for her, strange though it seems at first blush. I like her work, too.