Don't forget the use for 911 type services. On 4/12/11 8:10 , "Jeroen van Aart" <jer...@mompl.net> wrote:
>http://www.newscientist.com/article/dn20336-internet-probe-can-track-you-d >own-to-within-690-metres.html >"The new method zooms in through three stages to locate a target >computer. The first stage measures the time it takes to send a data >packet to the target and converts it into a distance a common >geolocation technique that narrows the target's possible location to a >radius of around 200 kilometres. >(..) >Finally, they repeat the landmark search at this more fine-grained >level: comparing delay times once more, they establish which landmark >server is closest to the target. The result can never be entirely >accurate, but it's much better than trying to determine a location by >converting the initial delay into a distance or the next best IP-based >method. On average their method gets to within 690 metres of the target >and can be as close as 100 metres good enough to identify the target >computer's location to within a few streets." > >It seems to me to be a rather flaky way of finding out your estimated >locat