The new iPhone. For Filmmakers?
The New iPhone. Now with 3G. It’s faster, of Cause, but that’s not what it makes the number one Tool for Filmmakers. There are other new features that are.
Exchange/MobileMe Compatibility
Get your Emails, Contacts and Appointments pushed to your Phone. Via Exchange or MobileMe. With Mobile Me even post Pictures to your WebGal. Find out more about the Integration of MobileMe and the new iPhone 3G in my Post about it.
GPS
GPS Navigation wit the iPhone. Go to Google Maps, search the Location you’re shooting and se your Position following the Line to the Location. No need for an built in to your car GPS. Jump from your Car to yout Truck and drive to the next Location, your iPhone will guide you. You can even Bookmark your Location while checking it and let the iPhone navigate you there when shooting starts.
App Store
Finally it’s there. Third Party Software to your iPhone. Games, Productive Tools, anything from Free to payed. Boost your iPhone with new stuff easily.
Ahh, mostly forgot. For 200$ lower than the old one you can call your friends with it also. Better than with every other Mobile. But that last one was true for the old iPhone also 
And here is the Ad for this one.
Popularity: 45% [?]
George, you bring up some good points. I recently wrote a post about the few iPhone apps that are actually meant for production and post:
http://fwdlabs.com/blog/2008/07/14/iphone-apps-for-filmmakers/
Enjoy!