Touch screen. The apple iphone was one of the first phones to properly capitalise on touch screen capabilities within a phone. Many phones before had started to introduce partly touch screen features onto phones, but the size of the screen and the use of buttons in conjunction with the touch screen was always a problem. The apple iphone however created a phone with 100% touch screen use, with a large screen that could clearly be seen which resulted in the first easy to use touch screen mobile phone. More importantly however, users were able to zoom when looking at web pages or applications to ensure that when clicking on links or pictures, they were able to do this easily. See this website for 3G iPhones 16GB wholesale price – best I have seen.