iPhones

Do any of you guys use iPhones for work? I have one and find it really useful for looking up info/phone numbers, etc-- much easier than the blackberry. Any aps you like? A photographer friend just showed me Film Slate ($4.99) where you can set time code on the iPhone to time of day. Makes it easier to real time log press conferences. I love Wind Meter, which somehow figures out the wind speed off your iPhone. I also have Twitterific and Wordpress... just got Shozu.