Abstract: An intuitive graphical user interface is based upon a geographic map structure, and includes a system for controlling remote external electronic devices. In the defined graphical user interface, each Space of the geographic map structure is rendered on a touch screen display as a graphic image of a geographic space. Within each Space are colored cartoon-like icons called "objects" which can be Selected and manipulated by the user. Certain objects, referred to as portals, transport the user from one Space to another Space when Selected. Other objects, referred to as buttons, perform associated actions or functions when Selected. The graphical user interface is displayed on a hand-held display device used to control remote devices. Each remote electronic device transmits a user interface program object that defines a graphical user interface to the display device.

Abstract: A drilling assembly comprises a matched bit and stabilizer in which the maximum outer diameter of the bit and stabilizer have been measured and machined to be within predetermined tolerances. The maximum stabilizer diameter is in the range of 0.003-0.025 inches in diameter less than the measured bit O.D. Preferably, the maximum stabilizer diameter is in the range of 0.005-0.010 inches in diameter less than the measured bit O.D. A series of stabilizer assemblies are provided, including a single stabilizer assembly, a double stabilizer assembly, a hole straightening assembly, a large bit O.D. drilling assembly and a small bit O.D. drilling assembly.