I learned 10 finger touch typing in school, but nowadays I mostly use my own 6-9 finger touch typing style with looking at the keyboard on demand. It all depends on the situation, while I can simply touch type this text I have to look more often at the keyboard when I'm copying a text. I suppose it is due peripheral vision when I am looking at the monitor...
A no go for touch typing are numbers(except on numpads, which sometimes makes me take a few tries using telephones and atm machines
) and special characters, go to hell brackets!