LK8000 is the only "turbulence proof" flight computer for PDAs and PNAs (car navigators), working only with touchscreen. It works on any Windows CE 4, 5 or 6 device, and on PC. It was designed to work in landscape mode, because all PNAs have landscape screens. It was designed to work with no hardware keys or buttons, because PNAs do not have them. It supports all PNAs resolution (480x272, 480x234, 800x480, 400x240, 320x240, 640x480), and it has been well tested on all major car navigators on the market. It works wonderfully on the chinese devices that come only with CE installed. It manages two simultaneous serial lines with automatic fallback and full redundance. Glider's, Paraglider's and Delta pilots are fully supported. During next months, also engine powered aircraft support will be added, making the LK a unique flight computer for all purposes.