Nowadays, users'interaction with a system has been a major factor to be considered in a mobile application development. In addition, existing studies also show that usability is a priority and a critical factor in a mobile cloud application adoption. Efficiency and effectiveness of a user interface is required to allow users to focus on the functions of an application. In order to evaluate the usability of an interface, a questionnaire and Keystroke Level Model (KLM) are proposed to measure concerned elements of a user interaction with intelligent mobile cloud computing (MCC). The result shows only 2.4 seconds is needed to access the data using the intelligent mobile web pre-fetching system that is 82.6%of improvement in efficiency as compared to the total time for traditional MCC that is 13.82 seconds.