The speaker Anand Agarawala presented a new type of desktop called BumpTop, which uses a novel interface that allows objects on the desktop to be physically bumped and moved in 3D space. Agarawala's presentation was innovative as it did not use PowerPoint, had a clear and informal style that was easy to understand, and incorporated humor through the bumping of objects. Viewers were encouraged to watch a video that demonstrated BumpTop's novel interface.