"One of the coolest looking things in the new Windows Phone 7 "Mango" release (see all the coverage you can handle at WPCentral) is Microsoft's Bing Vision.  It's essentially a Google Goggles clone (great artists copy/borrow/steal and all that), but the UI is really cool.  Your search categories are visible while the camera is running, looking fancy and nice as a semi-transparent overlay while you're capturing the content you want to scan.  Of course, WP7's Metro UI and its typographic look is in full force here as well." - LANjackal