You Need to Start Consulting the Google Shopper iPhone App Before Buying Anything
There's no excuse for any iPhone user to go shopping without consulting the Google Shopper app first. It's free, it's fast, it'll tell you if you're getting a good deal, and it'll pull up product reviews for better decision making.
The app allows you to search for products using ordinary queries, voice searches, or by taking a photo of a barcode or book cover. The results will include price comparisons, reviews, and inventory information for some retailers.
The app is free and available in the Apple App Store now. [iTunes via Google]