RIM just can't quit keyboards, and neither can many of its fans: even the BlackBerry PlayBook has an official Mini Keyboard case. It almost shouldn't be a surprise, then, that the company is applying for a patent on a tablet design with a stealthy keyboard built-in. The layout hides a full, hinge-attached QWERTY keyboard from critics (and accidental key presses) underneath a back-mounted cover. When an owner's urge to use physical buttons becomes ov
