A business card that plays Tetris is guaranteed to impress, assuming it doesn't give its recipient carpal issues.
Arduboy: The Interactive Digital Business Card features a tiny circuit board, an OLED screen, a speaker and input buttons. It is 1.6 millimeters total thickness and offers nine hours of playtime according to its manufacturer, Bateske. The company is looking to price the tiny electronics kit behind the card at around $30 a pop, and is planning a Kickstarter to get the idea moving.
