I've seen quite a few people complain about the keyboard on the iPhone (people who have never used the device, and people who own one themselves).. I thought I'd upload this video to show that it is actually very easy to type quickly on the phone:
http://www.youtube.com/watch?v=lKfhxMpEGpM
http://www.youtube.com/watch?v=lKfhxMpEGpM