People interact with touch-based user interfaces with their fingers. So user interface controls have to be big enough to capture fingertip actions without frustrating users with erroneous actions and tiny targets. Ok, so how big?
LukeW Ideation + Design provides resources for mobile and Web product design and strategy including presentations, workshops, articles, books and more on usability, interaction design and visual design.
Mac, iPhone & iPad interface design consulting, writing and speaking featuring tutorials, interviews, techniques and thoughts on crafting & building beautiful software. By Mike Rundle.