Forget about updating your nav system's software every six months or whatever. Toyota's working on a system it says will provide instant mapping capability, updating roadway conditions at every startup. Using a wireless Internet connection, the system, called Map on Demand, updates info on roadway conditions, including construction and detours within a 50-mile radius of the user's home and destinations. It'll be offered first in Japan, in cars loaded with Toyota's G-Book telematic service. No word on worldwide rollout, but don't expect it in time for the holidays.
Tech Watch: Toyota Revs Up Instant-Mapping Capability for Navigation Systems [Edmunds Inside Line]
BMW to Offer Real-Time Traffic Info in 2007 Models [internal]