Starbucks-Teavana-Tea-BarbildeUSA Today reported that Starbucks has opened its first Teavana Tea Bar in New York City this week in Upper Manhattan.   And, in an interesting article this week in Seeking Alpha, it was speculated that robotic baristas such as Marley Coffee Automated Stores and Briggo coffee kiosks may present a strong challenge to the future growth of the social coffee scene.