Ian White wrote:
I for one want to know where g got the cell tower info from. Carriers? Doubt it. Did they aggregate a bunch of open initiatives?
I would guess that having the tower locations would help initial population, but location based solely on these would never be great.
My read of the articles was that they use data from gmm users that had GPS capabilities (15% of total) to derive/enhance cell tower locations... and this is what allows them to say that the positional accuracy of the system will improve over time. I'm just waiting for the annoucement that they are storing positional information on wifi signal strength / mac addresses as well :)
Among other things, I act as system administrator for a fire dispatch call centre. My experience is that it can be difficult to get tower location and vector information from cell companies here in Canada, even when you need it for public safety.
Jason _______________________________________________ Geowanking mailing list [email protected] http://lists.burri.to/mailman/listinfo/geowanking
