A few points...
The thing about the iphone is that it is a "prettier" device. The closed OS does mean that Apple can ensure that "snappiness" and "fluidity" that attracts so many people.
BUT...many of the arguments on the plus side of the iphone are only advantages now because the android OS is still an infant. I mean iphone has had three years to fix problems and serious lackings (cut and paste anyone?!). After Verizon sold 1.2 million units in 45 days when the Droid launched, then the Nexus One came out, the momentum shift goes strong to any Android phone. Now there are multiple tablets and tons of new phones coming out. Not just the Droid, but Android phones in general will dwarf the iphone in numbers in another 18 months. Let's not forget Flash, Jobs hates it for some reason, and its coming to Android soon.
Why is all this important? If you go to the iphone now, you are in for most likely a two year commitment with AT&T. You are on the wrong side of the momentum shift. Give the Droid, or any Android device another 6 months to a year, and most of the issues ("pinch and zoom doesn't work as well") will go by the wayside. There are just too many users who want a phone on Verizon that is "just as good" as the iphone. Plus millions of other users coming on other carriers.
Now, looks, design, etc., that is matter of personal choice. The Droid is definitely more "robotic", and not as "pretty" as the iphone. But that's a matter of choice in design. For me, I love the Droid. I just had to buy my wife one (and got a free one for another family member to boot!!) because she loved mine so much.
Now she is loving it. (Of course I overclocked it for her and added live wallpapers and such ha ha). But she is raving about the Droid.
But if its simply a design choice, the Nexus One is just as pretty as the iphone, and that's coming to Verizon as well. If you must have the Apple logo, and just love the exact way and measurement and color of the Apple phone OS, and for a lot of people that's what it comes to, then you only have one choice. But logically, there's little reason now in terms of functionality and design to choose the iphone over the Droid or another Android phone. You won't be able to do more, you'll be able to do less.
Oh and the app store? The Android Marketplace jumped from 10,000 to 20,000 to 30,000 apps in 60 days, how much longer will it take until it equals the Apple store? Heck, I know people who got rid of the iphone because they didn't like itunes and like the open environment of Android.