i used to have iphone, but unfortunately, now i hate touch phones.
you have to see the screen while typing or doing anything, and touch screen typing is much slower than qwerty keyboard.
i couldnt even make a call or unlock the phone without loooking at it.
Currently I am using iPhone 4. My iPhone 4 performs well as a paperweight, now that I have turned to a New samsung Galaxy Nexus, seriously amazing cell phone.