What lurks below Microsoft's Surface? A brief Q&A with Microsoft

arstechnica.com — Surface features a touch interface, but it doesn't use a touch screen. Instead, five separate cameras are used to record motion on the table's surface. Ars spoke with Nigel Keam, a member of the Surface team, about the technology in the device, and he explained that five cameras were needed because of field angle issues.................... May 31, 2007 View in Crawl 4