Yahoo! have launched Fire Eagle, a ‘geo-location platform’. Covering the launch, TechCrunch says:
Fire Eagle allows users to syndicate their positional data to any partner service after updating from a supported device or website. This means that after sending a Pownce message with a geo-tagged photo, I could have Fire Eagle automatically update my current location on my blog and social network profile. Users can opt to disable updates whenever they’d like, and for the especially paranoid, you can even lie about your location.
Sounds interesting, though for me there really are questions around whether I actually want everyone to know where I am all the time. Not that I have anything to hide, of course!