There’s no need to wait for strangers at Amazon’s Mechanical Turks to respond to your searches. We have released a free iPhone app, Pricepad, that syncs your Shopping Wishlist, including photos, with the web. You can share your list with anyone directly from the phone by sending an email.

Pricepad is available for US, UK, Canada and can also lookup barcodes.

From the snappr web-site “If you want to scan 1D Barcodes on the iPhone, you need a macro lens. We found that the lens, which comes with the Clarifi-Case by Griffin Technology, works best. ”

Yes, technically there is a barcode scanner “available” for the iPhone. But a special external lens to be carried around to use it? As for 2-d bar-codes … not to be found in the US.

I can hear brick and mortar retailers teeth grinding now as they see dozens of people strolling their isles with no cart, checking out boxes for the bar code that can be used to make their Amazon purchase.

I think you’ve answered your own question, and invalidated your premise/tease line. I’m sure, if they weren’t already, Amazon will be all over it…once Jobs ok’s a better camera for the iphone. Perhaps one with better low-light resolution and/or a flash.