Wow, while the information presented in the iPhone interface video the video could not have been any more painful to watch. With that being said, I really like the look and simple interface that most apple products have. As an android user I have little experience with the iPhone but in general Apple products have very simple and clean interfaces.
The touch screen features of smart phones have enabled an entire new field of information design and technology design. Also what works really well with the iPhone is the scaling feature or zoom in/out feature. This makes navigation easy and seamless
The most appealing part of the iPhone interface is the icons that are hosted on the iPhone. To me the icons are simple and incredibly well designed. The simple navigation of visuals and text set the iPhone apart from the rest of smartphones.