If you saw the Hitchhikers Guide to the Galaxy movie this summer, you saw the plot device of all plot devices invented by Douglas Adams: a little talking book with useful (and otherwise) information about everywhere in the galaxy. Well, DNA himself tried to make something like this with his H2G2 website, but now a British Company has gone a step further. Their new technology - currently aimed squarely at the tourist market - gives you location-specific information for any point in its database, based on the position it senses via GPS.
This has a lot of potential. I have friend who is quite into geo-caching - the practice of leaving noteworthy items at specified GPS locations, for other hikers and geocachers to find - and he loves the treasure-hunt nature of the thing. This has the potential to do the same for data, and even more to allow cities to increase tourism (and advertising revenue) by steering visitors to the hot spots.
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