A piece of butter on the PDA display

This paper describes an interaction concept for controlling the cursor on a hand-held computing device's display, in difference to the desktop interaction paradigm. "Cursor" is defined as a small point-like indicator which is movable on a graphic interface. "Hand-held computing device" can for example be a Personal Digital Assistant (PDA). Moving the cursor should be like moving a piece of butter in a hot frying pan: The more the pan (device) is tilted, the quicker the butter (cursor) will slide "downhills". We also describe a menu system designed for this type of control.