I Am Here: One Man’s Experiment With the Location-Aware Lifestyle One man. Two phones. Dozens of GPS apps. Mathew Honan reports on his three weeks living la vida local. I'm baffled by WhosHere. And I'm no newbie. I built my first Web page in 1994, wrote my first blog entry in 1999, and sent my first tweet in October 2006. My user number on Yahoo's event site, Upcoming.org: 14. I love tinkering wit