year, it will have a camera and ports or add-on devices, something the iPad lacks. In fact HP is working on a slate that runs the Android system, nicknamed “the half-pint,” because it measures about six inches diagonally, smaller than the iPad. Microsoft is generating buzz on blogs with leaked video its prototype, the Courier. Said to be about as big as an ordinary paperback, it folds out to reveal two screens. Users can take notes on the device with a pen, and drag and share content between the screens. __