CamFind is an App that lets you take a picture to learn more about any object. It uses visual search technology to tell you what things are, and it can even tell you where you can buy them.
Another App is Discover, this let users capture visual and audio input with a smart phone and search for related information. It combines a variety of media search functions into a single App that allow users to scan images, audio, video, and even barcodes or QR codes.
For music you can try these Apps:
You can scan barcodes on products then look up prices and reviews using the App called Barcode Scanner.
Speaking of App, Oscar Mayer is giving meat fans the chance to wake up to the sound and smell of bacon every morning. The company's Wake Up and Smell the Bacon app and iPhone dongle, which unfortunately contains no actual bacon, is a complete bacon-themed overhaul of your iPhone's alarm. Check out more here.