Stewart Butterfield has it made. He’s famous for co-founding the popular photo-sharing service Flickr in 2004. He lives comfortably in Vancouver, having sold Flickr to Yahoo for a reported $35 million in 2005. And investors including Accel Partners and Andreessen Horowitz have thrown $17.2 million behind his two-year-old game company, Tiny Speck, even though the [...]