Previous work in the domain by others: Nokia: http://digital.venturebeat.com/2008/04/11/nokia-develops-navigating-system-based-on-image-recognition-landmarks/

Previous work in the domain by others: Nokia: http://digital.venturebeat.com/2008/04/11/nokia-develops-navigating-system-based-on-image-recognition-landmarks/ http://digital.venturebeat.com/2008/04/11/nokia-develops-nav... (they use the golden gate as their example too) Also: http://www.mobvis.org/publications/MMT2007_Paletta.pdf http://www.mobvis.org/publications/MMT2007_Paletta.pdf, http://mirw09.offis.de/paper/What%20is%20That%20-%20Object%20Recognition%20from%20Natural%20Features%20on%20a%20Mobile%20Phone.pdf http://mirw09.offis.de/paper/What%20is%20That%20-%20Object%2... 'World browser': http://www.wikitude.org/ http://www.wikitude.org/ Using GPS together with the compass to get interesting results: 2006, Japan: http://www.nytimes.com/2006/06/28/technology/28locate.html http://www.nytimes.com/2006/06/28/technology/28locate.html and now there are iPhone applications http://www.youtube.com/watch?v=U2uH-jrsSxs&feature=player_embedded http://www.youtube.com/watch?v=U2uH-jrsSxs&feature=playe...