When designing menus used by applications native to a computing platform or web browser, the developer has a great deal of latitude due to the user interface's size and flexibility. This changes when developing applications and menus for mobile devices. Your face is generally smaller, so the information needs to be provided in a specific manner. This question incorporates both technical and operational elements of mobile application development. Remember to keep your answer brief and to the point and anticipate follow-up questions if the interviewer wants to explore this topic in more detail.