Have you ever been in a grocery store and wondered if you are getting the best deal on a product that you are putting into your shopping cart? I do all the time, especially with big ticket items like computers, TVs, etc. Wouldn't it be cool if you could read the bar-code and quickly get prices and reviews of off the Internet?
The following software all use the iPhone's built in camera to capture the bar-code and decode them to get information and content from the Internet.
BarCode will only read and store your bar-codes in a database. (Average rating: 2.5 starts, 47 reviews)
NeoReader goes a step further and allows you to search details about the product that you just scanned. (Average rating: 2.5 stars, 19 reviews)
ScanLife seems to be able to scan only 2D bar codes (EZCodes). Apart from that it also allows you to search for web content based on the item you just scanned. (Average rating: 3 stars, 12 reviews)
CheckOut is the only one that is not free ($4.99). There is a service outage currently with this app. It too allows you to search for online content based on the bar code that you scanned in. (Average rating: 2 Stars, 34 reviews)
If you look at the reviews all of them have some problems. But they do work. And they definitely are a cool idea and an innovative use of phones that have access to the Internet.
(disclaimer: I have not installed any of the above apps on my iPhone. The review is based on the reviews and statistics available on iTunes as of today).