It's not a business unit - by design (not a Crackberry)
It's not a laptop replacement (WinCE? Win Mobile? Palm? Puhleeze!)
It's not just an iPod (More than tunes)
It's not just a phone (Beyond voice)
It's not a tablet (Too small, and too useful)
It's an EXTENSION of my Mac. (i- or -Book).
It's what I can actually USE, dare I say, really need?
It allows me the full functionality of the phone I have (whose "features" I gave up on months ago) and more.
It allows me to grab my mail, change my flight, hotel, or rental car effortlessly - at least compared to firing up the Dell in the airport, or punishing myself with the Sprint network on the 650.
It allows me to ditch my 4GB Nano and Treo, and consolidate my gadget bag.
It lets me carry ALL my tunes, photos, contacts, calendar, mail, a few shows to catch up on, maybe an audiobook or two. In one device. That will FINALLY FREAKING COMPLETELY AND SEAMLESSLY SYNC WITH SOMETHING!
I spend over 150 days a year on the road, >500 hours a year in a plane, countless hours in between flights cooling my heels, tens of thousands of miles in rental cars.
If it saves me just 10 minutes a day in frustration, and gives me a piddling extra 10 minutes in convenience and enjoyment, that's 20 minutes a day to my benefit, that's 3000 minutes a year, just on my travel days. 50 hours a year - minimum. At my current salary, that's at a value proposition of at least $1500.
Is it perfect? Not even close. It's just so much better (if only in concept, granted) than anything else out there I have tried and suffered with. I'll spot $600 for a couple year's trial, easy. I've had $650 phones that totally sucked, so how bad off can I be?