Google Trekker goes to the Grand Canyon, takes Street View souvenirs back home

You might remember Google's unveiling this spring of the Street View Trekker, a seeming cross between a backpack and Van de Graaff generator that lets the mapping team produce 360-degree imagery where even trikes dare not tread. The portable camera ball is just going on its first trip, and Google has chosen the most natural destination for a novice tourist -- the Grand Canyon, of course. Staffers with Trekkers are currently walking trails along the South Rim of the canyon to provide both eye-lev...