Before the Apple iPhone, multi-touch was considered to be nothing more than a “problem.” With the development of the iPhone and Windows 7, touch interface manufacturers were given the tools they needed to accurately interpret multiple input points. Thanks to these ever-evolving tools, multi-touch systems are quickly becoming the standard for touch interface systems. This white paper includes an overview of multi-touch technology, including a review of multi-touch systems and a detailed breakdown of how the technologies work and a forecast of what’s to come.