Introduction
	Toolglass widgets: semi-transparent interactive tools that are used in an application work area, and appear on a virtual sheet of transparent glass called a Toolglass sheet. The user can line up a widget, a cursor and an application object in a single two-handed gesture. A widget that has been stretched across the entire work area creates a command mode. User can move sheet over application object or move the object to a widget (trackball can control both sheet and scrolling).