Werner Heuser writes with an article in Linuxdevices on building your own handheld pointing device that works in mid-air. There is a YouTube video showing the Soap in action and detailed instructions to make your own Soap. From the article: "'Soap,' which resembles a bar of soap, is based on hardware found in a common wireless optical mouse, and is relatively easy to make, according to its inventors. Imagine numerous situations in which one might wish to control an appliance while standing or walking, for example, when giving a slide presentation or interacting with a wall-sized display."
Link To Original Article
A DIY Mid-Air Pointing Device
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