I was also very, very skeptical about this. But I have to say, it worked for me. I read this book in desperation after learning Dvorak, getting a fancy Kinesis keyboard, and getting expensive physical therapy (massaging of my forearms, hand strengthening exercises) to no effect. I repeat, no effect.

I don't know what else to say. It still sounds like bullshit to me, but it worked when all of the other methods did not.