Jason Winters made a laptop version of the Commodore C64. The specifications are: Hummer DTV. Size: 16,5 cm x 15 cm x 4cm (closed). Power: 7.5v adapter or rechargeable batteries. Screen: 5" LCD. Keyboard: 69-key QWERTY. Sound: Amplified 1.5" 0.4W internal speaker. Connections: power, userport/joystick, serial disk drive, audio/video output, headphone jack, external PS/2 keyboard, SD card slot. Look at the web site for more details.