the iphone does have some definite appeal, but how long would it take for that to wear off if you were to get one? my guess is not long. my view on the issue is this: iphone = novelty, blackberry = practicality. if you've grown accustomed to your 8330 and you switch to the iphone, what happens if you find yourself wanting to switch back? could be a pretty pricey little process for you by the time it's all said and done.
if you're up for a new phone, how about the storm? a lot of its features have that "wow" factor, and you wouldn't have to switch carriers.
my answer is obviously loaded with blackberry bias, but anything to help prevent someone from switching over to the evil iphone!