…or at least a Facebook search.  Thanks to Grégoire Lacoste and his blog, who informed me of this demonstration from Comverse at the Mobile World Congress that was held last weekend in Barcelona.  This augmented reality application uses facial recognition to find all social network information for a person in a photograph.

[youtube]http://www.youtube.com/watch?v=F7Bn2plG_HQ&feature=player_embedded[/youtube]