This is an interesting idea. I certainly see the temptation for products to get tagged in photos and get free publicity for their Facebook pages. I’m trying to figure out how I could use it for my blog’s FB pages in fact.;-)
On the other hand, having the opportunity to tag a popular page in your own photo, and have it appear on that page’s feed does open up the possibility of serious spamming. Does anyone remember the Skittles debacle?
Still, with Facebook being a closed infrastructure there are ways to limit some of the risks of spammers and scammers getting their photos to show up on Coke’s Facebook page, but they can’t get rid of it completely. The most they can do is react to the spammers, not prevent it. I do wonder how this is going to work out….