Remember the Dreamcast VMU (Virtual Memory Unit)? Not only did it serve as the system's memory card, but it had a small screen and buttons, which allowed for portable gaming, to go along with what seemed like about 30 seconds of battery life. It was just one of the unique quirks that made the Dreamcast so special.
If just thinking about Sega's tragically short-lived console gives you a warm feeling inside, you'll probably enjoy this case mod for the iPod nano, which pays homage to the only memory card that ever had a directional pad [via Engadget]:
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