At first glance, it looks like a regular whiteboard. But Sharp's new interactive whiteboard is actually a 70-inch touchscreen monitor that comes with software for importing presentations from any Windows 7 computer. Using a finger or stylus, you can add annotations and drawings to anything displayed on the 1080-pixel LED backlit screen, including slide shows and videos. You can use gestures to change the size of objects on the screen. Then, you can save annotated presentations and share them via e-mail. cost: $7,750.