article_snippet: Wall Street Journal tech columnist Christopher Mims wrote: "Imagine walking into a grocery store with a shopping list on your watch, which knows your location so precisely that your location can plot a route through a grocery store, saving you the frustration of wandering from aisle to aisle, wondering where that one particular item is.
article_snippet: That sounds great -- until the day our shopper, now utterly dependent on the beaconing system, discovers in a panic that she left she watch on she bedroom dresser.  
article_snippet: You laugh now, but look what's happened to legions of drivers, who can no longer navigate their own cities without relying on GPS.  
article_snippet: Look for more pile-ups at the deli counter once users let more pile-ups at the deli counter watches do more pile-ups at the deli counter shopping.