I'm having pre-regrets...
So the GPS helps you navigate between your wife and your girlfriend? Cool.
On a serious note... I've got a 16 Gig 3G on order to replace my 8 Gig 1st gen iphone. I'm on the fence as to whether or not I should even pick up the order when it comes in.
Concerns:
I'm a little disappointed with indoor 3G reception. My friend got a 3G iphone the other day, and when he brings it in the 2 story building where we work, it switches over to Edge almost immediately. We work right off a major highway in Atlanta, so the 3G coverage is supposed to be pretty good there.
The build of the case varies. It seems like after they stamped out all of the plastic and little metal parts, someone forgot to hit the edges with a grinder to smooth them out a little. Even the mute switch feels relatively cheap.
I hear stories about how horrible the battery life is, but I have another friend who abuses his 3G iPhone and gets decent battery life. He'd be the first to complain. Since I leave mine plugged in 99% of the time on a typical day, I am nots as concerned about the battery.
Likely Reason to Purchase:
The biggest reason I'm thinking about actually picking up my 3G when it comes in to the AT&T store is the NetShare app that appeared, disappeared, reappeared, and disappeared again from the Apple store. I grabbed it while it was there. Tethering my MacBook Pro to my phone via wifi for random use would be huge. Use the Edge network wasn't horrific, but having 3G speed would be amazing.
GPS is a nice feature, but not mandatory. There are several times when having true GPS would have come in handy, but I would have been happy to turn it on at that point. But since I have a car dock for my phone (which has been verified to work with the iPhone "Classic" and iPhone 3G) I could drive around with Google maps on and tracking everywhere I go. If anyone wants to know, I can get you the details on the charger. It was designed for generic iPod use. You just have to say I don't care that this wasn't designed for the iPhone each time you plug a phone into it.
Sorry for the long post. I understand where the original poster of this thread is coming from. I almost have regrets for even ordering the 3G. There is something to be said for getting by with something a little more older and "classic".