Sgt_Kickaxe - 6:16 pm on Apr 2, 2011 (gmt 0)
Google "google product search" and take a peek at their product search engine beta. It's 100% affiliate offers from Google, no other sites allowed.
Perhaps they plan on removing product and affiliate sites from natural search completely in order to be the only product pusher on Google and this was a first step towards that?
Until you rule it out as impossible it's still on the table.