When a TransferJet chip in the camera's memory card comes within an inch of one in the keyboard tray, up to 20 photos hop over at a rate of a second apiece. (That's more than 20 times the speed of Bluetooth and even closing in on wired rates.) The chips attain that pace by using a shorter-distance, lower-power version of speedy ultra-wideband radio and skipping time-consuming file compression. And unlike Wi-Fi or Bluetooth, there's no need for passwords, since the close range ensures that hackers can't steal pics from afar. Expect more TransferJet devices, like TVs and digital photo frames, from Sony and others over the next year.