Not only will typography become more suitable to mobile screens and resolutions, but navigation, forms, images, and mobile-specific features (such as GPS) will have the focus of design. The use of images will change somewhat. Where images have been used for effects and text, CSS and fancy fonts will be used for effects and text will be used for text. This reduces page-loading times and server load.
Touch events are becoming more prominent. More sites are using plugins to handle events such as tap and swipe. This takes websites beyond just being responsive to the screen size, but also to the screen type, finger size, amount of pressure used, etc. Buttons and fields have to be large enough and have enough distance between them so they’re not hit accidently. Which brings us to mobile layouts.