AdViking has installed it and will hopefully report back with news of all the free beer money earned from getting friends to buy things but current understanding is that Affiliate Windows have made a good stab at trying to enable the nano-publisher.
By that, AdViking views that Beacon, etc. have failed to date as they didn’t cut in the individual into the pie. wishlist appears to enable Facebook users to create lists from various merchants (e.g.: Play.com, John Lewis) and then get a cut (called Social Reward) that gets paid into PayPal.
From a quick look around it seems the feedback is fairly negative but AdViking thinks this is actually an interesting move and one to track the progress of.