I've had a few days with my iphone 3g. I really like it... I am also one who will say I can type as fast on the iphone as I can on the pearl. It seems to handle the volume of email that I get with no problems (approx 70/day). The calendar works fine. I like the way it does texting... it makes it easier to follow a conversation. When importing contacts from the pearl it will not import all numbers stored under one name... I had to manually enter the contacts that had multiple phone numbers, it would only import the first number. I really like the way it does voice mail, you can select which voice mail you want to listen to, fast forward or play back easily.
I originally thought I would try this and then probably switch back to BB with all the comments I heard about how it is not a business machine. Probably not going to happen...
Tg