I had to learn to trust the auto-complete while I'm typing, and then edit after writing instead of correcting as I go along. I comfortably take notes in meetings, write in a journal, work on a novel, etc without using my Apple bluetooth wireless keyboard while I'm on the go. If I'm at home and trying to hit a word count for the day or something, then I might bring out the bluetooth keyboard.
Another colleague has an iPad with the Zagg Folio keyboard and can't type on the screen at all, he has to use that keyboard. For me, after nearly 2 years of iPad ownership, I learned to ditch the bluetooth keyboard and make the soft keyboard work. I can type as fast as the guy next to me in meetings, directly on the screen. 😉