Typists generally fall into two camps - those who are trained and those who type with two fingers. And as Edward has pointed out elsewhere if you are a two finger typist practise will only make you a better two finger typist.
But I was watching my son the other day on the internet and he gave every appearance of being a fully trained typist. So I asked him where he had learnt. His reply was that he had taught himself - not from a book or tape or computer based program by rote. He had simply taken the two finger idea and extended it to all of his fingers!
So here we have a new category somewhere in the middle between the fully trained typist and the two finger one.
For me what is interesting about this is that every person on this site has had to type in order to use it. How many have thought about this as a possibility - even as we discuss thinking and creativity. In my case I certainly had'nt.