I upgraded my mobile life with an HTC Desire Smartphone a few months back. I was reticent about making that leap from a phone with real buttons that you have to push to a slidy-tappy thing resembling the tricorder that Commander Data wields on Star Trek TNG. I did not know if I would get enough traction (literally) with the new way of working.
I've not really looked back. Sure, the greater sensitivity of the screen interface to my accidental swipes and mis-taps is annoying sometimes, but it's background noise.
The software world often defined by the die-hard fans vs the haters of one technology or another - e.g. Microsoft vs Non-Microsoft, Windows vs Linus. Interestingly, Techie people often have a dislike for some Microsoft products (specially Internet Explorer) yet they typically use a PC with Windows rather than a Mac. It's more hardcore.
The same demarkation is hapening with smartphones - here it is iPhones vs Android-based phones. It seems that techies tend to favour the HTC or other Android phone to an iPhone. The possibilities for apps is apparently greater with Andoid but Apple have focussed on the user interface and probably boast the better user experience.
Here is an interesting article I found about market share and the future of the different mobile OS technologies:-
http://technologizer.com/2011/01/27/the-end-of-the-zero-sum-game/