OK mate, compare away. I supposed you'll be straight on facebook after you get it, telling everyone how good it is, please tell me why it (iPhone4) is good?
Nope... Mate... Not on Facebook blah, blah, blahing away. I've owned every iPhone. Every single iPhone has been an improvement in some way over its predecessor (it's a well known strategy of Apple's to incrementally update the features of their products - and it's works just fine for me and them). In this edition, even though I have yet to even activate the thing, I will enjoy a display that is 4 times "sharper" than the 3GS (and yes, it is markedly different, in a good way), as well as a solid well built form factor that with the right protection will stay incredible for years (like a fine German car - and yes, I always protect my iDevices, and yes I'm well aware I'll probably only own it for a year or so). I'll enjoy an incredible 5MP camera with flash, and since we all already know MP isn't the whole story, lets just say the pictures I've seen taken with it are stunning. Furthermore, a front facing camera that will in-fact over time change the way we communicate whether you want to believe it or not (mainly because one of the most popular mobile devices on earth will offer it).
But you want to know the REAL reason why I just spent 8 hours in line (or on line as you say) for the "over hyped" piece of technology? Actually it's because I like to take things a step further and take full control of my device via the jailbreak - and after doing it for over 3 years, I know that the initial release of every iDevice is always the most susceptible to exploits and hacks. Call it what you want; tell me that I'm proving your point by saying I want to hack my phone... But to me, it's what makes it really mine. Something I enjoy.