[ALUG] Face Recognition

On the back of a bus I saw an advert for the Apple Mac talking about its ability to use face recognition when processing photos. Is there anything like this in Linux? It looks like Google had it planned for Picasa back in 2006: http://googleblog.blogspot.com/2006/08/better-way-to-organize-photos.html .. but as far as I know it's not there yet? -- Mark Rogers // More Solutions Ltd (Peterborough Office) // 0845 45 89 555 Registered in England (0456 0902) at 13 Clarke Rd, Milton Keynes, MK1 1LG