xf, Spotlight may have been inspired by Beagle, a descendant and outgrowth from Dashboard. Nat Friedman demonstrated it at GUADEC in Kristiansand, Norway last month... SIX HOURS before Steve Jobs demonstrated Spotlight. At least we got to make it public first. :-)
I guess this is one of the challenges of having ex-GNOME hackers working for Apple. :-)
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