I had been a Sprint customer since 96 and got to the point of being totally frustrated with their service lately. I made the switch to Cingular and am very happy so far. Over the years, I have owned over a 20 phones. The 8100 is by far the best! Like many others, I would like the option of switching off the auto dimmer, and I am waiting for Seidio to release the OEM battery door for my Cingular Pearl. I have followed BBF for a few months now. You have helped me to decide on the Pearl, and I have received very good information regarding all problems/questions that I had with my new BB.