Most improvements in computing involve faster speeds and more storage, but every once in awhile an evolutionary step takes place that turns the computer on its head. The HP Sprout is an example of the latter. There’s no keyboard and no mouse, just a smart touch mat, a 23-inch touchscreen, and an overhead projector that all work together to change your computing experience. Place an object on the mat and an image of it can pop up on your screen, then you can move it around and resize it with a few swipes of the screen. Put an open book on the mat, and you can have the text in a doc on your screen. You can even use a stylus on the mat to have your writing appear on screen. Of course, for standard work, you can have a projected keyboard shot across the mat so you can type away. It’s different, possibly revolutionary, and pretty damn cool.