Chandan, Sun Microsystems’ “Chief Executive Prankster,” must have had a little time on his hands over the holidays, since his latest prank is a pretty slick product design concept. The All in One Card (or the AIO Card, as he calls it), is a credit-card sized gadget that Chandan envisions as a thin-client device with an e-ink-like display, which could be used as a media player, web appliance and even GPS unit. The card would be powered by solar cells, would include integrated Bluetooth and WiFi for data transfer, and could be slotted into a smart card reader to hook up to a full-size display and keyboard. While this will probably never be made, it’s still an interesting concept, especially since Chandan bases it around his employer’s Sun Ray thin client technology, which allows a device to run over broadband without a processor or hard drive.