Google's blog has announced that Google Product Search now joins the growing list of Google web sites and WebApps optimized for the iPhone and it's Mobile WebKit cousins:

I'm happy to announce that as of today, when you type a product query on in your iPhone or Android browser, you'll get Google Product Search results nicely formatted for your phone. You can see online ratings, reviews, prices, and product details if you're out and about, or just do some mobile web surfing from your couch. Whether you're trying to decide between two digital cameras while you're in a store or checking out prices for a new product that you've just seen on TV, we hope Google Product Search for mobile helps you to make better-informed shopping choices.