I would like to put three LCD character displays into a long triangle shape like a Toblerone package. The display facing the viewer would display text. There would be thousands of messages stored on a serial EEPROM. The message displayed would change as the device was rotated.
I could stick the battery, the AVR, and the serial EEPROM in the center part of the triangle made up of three 24x2 LCD displays.
But how would I detect that the user has turned the device so that a new LCD display is facing them? Micro mercury switches? very cheap accelerometers?