Google has launced Google Shopper for Android phones. The app claims to help you shop smarter. Users point the Android phone's camera at the cover of a book, cd, barcode, etc. and the app does the rest. You don't even have to press a button as Google Shopper recognizes the product automatically. Google Shopper gives you product-related information like where you can make your purchase, price, etc.
Google Shopper is available in the Android Market and works with all Android versions.