A sign in the window of a Starbucks outlet advertises the company's new Via instant coffee product in Golden, Colorado September 29, 2009. Chief Executive Howard Schultz called Starbucks Corp's Via Ready Brew "perhaps the biggest opportunity" in company history as he prepared for the instant coffee product's North American roll-out on Tuesday. Reuters Pictures 1 month ago

A sign in the window of a Starbucks outlet advertises the company's new Via instant coffee product in Golden, Colorado September 29, 2009. Chief Executive Howard Schultz called Starbucks Corp's Via Ready Brew "perhaps the biggest opportunity" in company history as he prepared for the instant coffee product's North American roll-out on Tuesday.