As experiments go, this one isn't flashy. But the success — or failure — of one Starbucks cafe on the edge of a trendy Seattle neighborhood could ripple through the nation's coffee house industry.Because where Starbucks goes, others follow. Dubbed "Olive Way," the store is the biggest percolator yet for ideas that the world's largest coffee company has been testing separately at nearly a dozen locations around the globe. And what succeeds at Olive Way will most likely be spread to other Starbucks stores around the country.