As you notice in the screenshot above, a search for the Opera Browser" on Google provides direct links to product screenshots, features and other related products.
I was able to reproduce it a couple of times but not always. All the links point to the Opera website.
So testing for a new feature is definitely underway. The link to buy the product is currently pointing to the vendor's website, I see that pointing to Froggle when this feature becomes publicly available.
This "Google Screenshot" feature was first noticed by Daniel.