BarcodeZilla is a Zxing based barcode decoding application  which is enabled for product recognition (mainly intended for EAN-8 / EAN-13 and UPC barcodes) that will display information the origin country of the product and allows to download product information (if available) and to edit and upload product and price information for your country as well using a WCF webservice.

Oh and it is a freeware. Get it from the following link:
http://www.barcodezilla.net/Mobile.aspx

note: This application is using .NET Compact Framework 3.5 and SQL Compact 3.5. Make sure you have them on your device in order for it to run properly.