Hmm for me it was that I was frustrated with my DX as I couldn't do with it what I wanted. After the Droid I got spoiled and wanted a phone that was fully customizable, that means the option to run full on aosp roms not hacked together roms that while they are great IMHO they are never as smooth, fast and trouble free as a rom completely compiled from source.
As for why I didn't go apple over TB I honestly don't like the dumbed down UI and the lack of user customization that android gives me. Android gives you the option to be an individual and let your phone show that, and even more so on a fully unlocked phone. The other thing I don't like about the current iphone is the screen size after going from 3.7 Droid to 4.3 DX there is no going back and to go even smaller at 3.5 for iphone well that is out of the question. I like their HW and build quality, if the screen was 4+ and the OS was more open to user customization and if they opened their phone to outside app installation and didn't lock me so into itunes for everything I would consider an iphone. I doubt any of that other than larger screen size will ever happen though so it's android for me right now...
As for why I didn't go apple over TB I honestly don't like the dumbed down UI and the lack of user customization that android gives me. Android gives you the option to be an individual and let your phone show that, and even more so on a fully unlocked phone. The other thing I don't like about the current iphone is the screen size after going from 3.7 Droid to 4.3 DX there is no going back and to go even smaller at 3.5 for iphone well that is out of the question. I like their HW and build quality, if the screen was 4+ and the OS was more open to user customization and if they opened their phone to outside app installation and didn't lock me so into itunes for everything I would consider an iphone. I doubt any of that other than larger screen size will ever happen though so it's android for me right now...