Minimum sensible button size on iPhone

Question

I\'m designing an iPhone app that features a rather large set of onscreen rounded rect buttons. Given finger-based touchscreen UI, what do you think would be the smallest se

Answer 1

Apple says that the avg finger tap is 44x44 (from WWDC). All table rows are recommended to be at least that height. It is common for icons to appear 32x32, but have padding to make the touchable area 44x44. Of course, people can tap a 1x1 if they are very careful, but why make people try harder than they need to in order to use your app?