if you had a crackberry and were completely addicted to using the physical keyboard, it might take you some time (weeks or so) to get used to the touch keyboard on the iPhone. However, if you have never used a keyboard on a phone before, then you should not have many problems with picking it up. I have had my 1st gen iPhone since the price drop, and ive noticed over the past few weeks that i completely "touch type" with my thumbs now. i dont even look to see what keys are being pressed, i have gotten used to the location of the keys and the auto-correct. i dont know how long i have been doing that, at some point i guess it became second nature. and in reality, after a couple days of use, i stopped thinking about it and just started typing.