Google Shopper Android App Officially Confuses Me: WTF Is Google Doing? [Google]

I don't understand Google Shopper. Not because the function—searching for books, CDs, DVDs and more by using the cover art or barcode—is confusing. But because they already have a visual search app built into new Android phones, Goggles.

Goggles does the same thing: You take a picture of something, like a book cover, and it searches for it. I get that Shopper is slightly different, with more of a direct Amazon-competitive slant, since you can bookmark products to buy them later (presumably through Google Checkout). By why not just integrate that into Goggles? Why the hell does this separate other product exist? Like Fake Steve says, WTF is going on over there? [