Starting tomorrow (October 2, 2009) at participating Starbucks locations, they will be offering a coupon good for a FREE Tall Coffee (valid for your next visit) upon completing a taste test between Starbucks VIA Instant Brew and Pike Place Roast. Taste test participants will also receive a coupon good for $1 off Starbucks VIA Instant Brew. Deal ends October 5, 2009. [Store Locator]