If you are registered, you get access to the members only section, can participate in the buy & sell second hand forum and last but not least you can reserve your preferred username before someone else takes it.
The DP1 is a great street camera. Don't listen to the people that don't understand the camera. It's very fast once you get to know it and build a relationship. You have to think, you have to concentrate on your subject....bad news huh?