http://itunes.apple.com/WebObjects/MZSt ... 54705&mt=8
http://itemshelf.com/
How come this application IS allowed?The ItemShelf is an application for iPhone/iPod touch to manage your favorite items in wishlist and virtual bookshelf. For example, when you find some items at shop, you can check the information of the item easily with this application, and save it to wishlist. You can manage your owned items with virtual bookshelf.
The information of the item can be read from barcode via camera, or you can input barcode manually.
Features:
You can read barcode with iPhone's camera, and search with Amazon. (You need macro lens)
You can enter ISBN, barcode number (JAN/EAN/UPC) or ASIN manually.
You can search items with title at Amazon, Rakuten, and Kakaku.com.
You can manage items with your own wishlist and virtual bookshelf.