While we were out at CES we saw many cool new products. One that caught our eye was a new type of overhead scanner that will allow you to scan books – among other things – and automatically straighten and flatten-out pages. We offered one of our short “Video Snacks” on this from the show floor, but figured it deserved a closer look. Also, Chris Graveline takes a look back at the tech achievements of yesterday with “This Week in Tech History. “