One of the most useful apps out there, ShopSavvy (see earlier coverage) is finally now live in the Marketplace. The barcode-scanning shopping assistant allows you to scan any UPC label out there for price-checks against the web. For example, scanning a book's barcdoe will bring up prices on Half.com, eBay, Amazon, etc. You can then hop to the site or "share deal" with others. In addition, if any local deals are found, it'll show them on a map based on your location as well as any reviews for the item.
After giving it a spin for ten minutes, we were left impressed. And seeing as it's free, there's no reason to not try it, especially if you like bargains. Grab it here in the Marketplace.