It was a happy coincidence that on a long flight from Hong Kong I stumbled upon an article in the International Herald Tribune about location tracking that was so much up my alley that a slightly more sleep-deprived and jet-lagged traveler might have suspected he was being set up by some shadowy Matrix manipulator. The first part of the article argued that there is an avalanche of new location-based applications for smart phones -- which is true. And there's a suggestion that Google's new Latitude service will be a powerful force in the commercialization of location information. Too soon to tell. My fumbling efforts with Latitude left me less than thrilled, but conditions were not ideal -- I was struggling with a GPS logger bluetoothed to my smartphone -- according to my tech advisor on all things GPS this is a recipe for bewildering hocus pocus that may or may not work and either way you'll never really know why.