I'm kind of reminded of two other situtions in my past. I'm a geek. I design microprocessors for AMD, write operating systems, and buy lots of electronic toys.
In 1997 or so I started using a creative labs mp3 player. Can't even remember the model, but it looked like a cd player and had a hard drive. It had a ton of features. I scoffed at ipod when it came out. "What do you mean you can't do on-the-fly playlists? How are you supposed to control things when there are so few buttons?" A couple years later i got tired of jumping through hoops to get my music onto the thing and having to constantly tell it to rebuild the library because songs would mysteriously disappear off the thing, and I got an ipod. While I missed some features, overall I found myself enjoying my mp3 experience more because it required so much less effort on my part.
Later I got a pocket pc. Later i got a second one. I learned to program it in c++, grew to appreciate the api, but eventually got annoyed at bizarre user interface inconsistencies, activesync hassles, random crashes, and the like. So when it came time to get a smartphone I went with samsung's sph-i500, a palm phone. And I learned to program that, too, and while the API sucked, and the phone had fewer features, what was there just plain worked a lot better. Fewer crashes, fewer clicks to do common things, etc. So my next phone was a treo 650.
But palm stopped evolving about three years ago, their announced future plans are alternately incomplete or laughable, and the software and hacks to bring the functionality up-to-date are getting kludgier and more unstable. Windows mobile is very powerful, but I am still not happy with the inelegance of its design and interface.
My iphones won't arrive until friday, so i have no idea if I will find this to be a similar situation. And I have no doubt that if apple never releases another firmware update, then iphone won't be a suitable device for me. But I am hopeful that, for the most part, the iphone will be a step up in ease of use and simplicity, I'll know soon enough.
And I think that many people who are buying these phones on the basis of their interface are not just doing so because of the "ooh" factor, but are hopeful that the iphone will live up to its obvious potential to simplify at least part of their lives.