The splinternet has created a headache for eBusiness leaders who must now support optimized commerce experiences across an increasingly complex landscape of web-enabled touchpoints. Maintaining separate code bases and web development teams for desktop, tablet, and mobile experiences is costly, but has been a necessary evil for many. Others have outsourced their mobile commerce development and maintenance to a solution provider or interactive agency, but this approach can be costly and limits control and flexibility. It is no wonder that eBusiness professionals are intrigued by responsive design, a new approach to web development intended to support optimized web experiences from a single front-end code base. This document sets out to explain what responsive design is and isn't, as well as why it will become strategically important to many eBusiness teams.