The Real Father of Multi-Touch Interfaces

A few weeks back I read this story on Gizmodo.com. Which says that some people would call Jeff Han the "father of multi-touch". In fact, Bill Buxton formerly of Alias Research was doing this in the 80's and established the grounds for which Jeff Han's research is based. He created all sorts of unique input devices and enhancements. You can view his old research videos here. There are various articles on his site that are specific to multi-touch input. Including a timeline history of such devices.