Thanks for the link, it looks quite interesting.

However, it will not be suitable for this particular application. Two reasons:
*) Privacy - The users might agree to give access to plugin, but probably not to some generic 3rd party application.
*) Efficiency. Polar Rose is planning to do general face recognition. That’s a very wide field and quite hard to train the software for. Riya’s strength was that you trained on your and your friends’ photographs, so only a limited number of people needed to be recognised. They expected such limitation to make recognition significantly easier. And even then, they failed (though that could have been business model).

In the fall we will open up for a royalty-free use of our APIs, which will allow for partners to integrate the Polar Rose functionality into existing sites.

The only significant requirements we put for the use of the APIs is that the Polar Rose signature rose is used, and data that explorers generate is passed back to us on a non-exclusive basis. The reason being that every piece of data helps train our engine.