I am on the Verizon Network. When iPhone was introduced, I wanted one but couldn't move to AT&T due to my business paying for my Cell phone. At the time I was using a very buggy Treo, and went to a very reliable Blackberry. When Apple introduced the Touchscreen and using your finger as the Stylus, I was intrigued.
Then Blackberry released the Storm and marketed against the iPhone heavily
That was just wrong on so many levels. I upgraded to the Tour until they fixed the bugs. The Storm 2 released, and what do you know....BUGS
They should had just stayed with the hardware keyboards they were good at, these failure devices moved me to the Droid. That sucker was clunky. The OS was interesting, and I really felt another Windows vs Mac was developing. Unfortunately the sound quality was not very good, I swapped many devices, even tried the Palm Pre. I ultimately found that until iPhone came to Verizon, everything else was a Stop Gap. I found too many bugs in the Samsung Fascinate, the closest thing to Android getting it right for me was the Droid X.
Bottom line is, Android began doing it right releasing a few good devices with different form factors to chose from. Then I started seeing WAY too many flavors and skins, and too many devices being released too quick. It's not good to make one device look obsolete 2 months after you release the one before it 2 months prior and force a 2 year commitment on these.
Since I have moved to the iPhone, I have not found reason to look any further. It is to me what Blackberry used to be......it just works. Any PIM application I use does what it is supposed to do. That was the basic foundation I needed, everything else just makes this device better and better.
If someone came out with a better Smartphone, I might look at it as a complete tech geek....but as far as I am concerned, iphone is the only phone I need.