Swinging for the fences – Tristan Walker and Foursquare

“When I first heard about Foursquare, I emailed [co-founder] Dennis Crowley. He said, “Are you ever in New York?” I said, “Actually, yeah! I plan on being in New York tomorrow.” [Laughs.] I booked my flight that night, met with him and, a month later, I was working for Foursquare. ” says Tristan Walker responsible [...]