I'm a designer specializing in mobile design strategy, and I'm author of "Tapworthy: Designing Great iPhone Apps" (O'Reilly, 2010). My outfit Global Moxie offers consulting services and workshops to help media companies, design agencies, and creative organizations build tapworthy mobile apps and effective websites.

Before the interwebs swallowed me up, I worked on a slew of national PBS programs at Boston's WGBH. I shared my three words of Russian with Mikhail Gorbachev, strolled the ranch with Nancy Reagan, hobnobbed with Rockefellers, and wrote trivia questions for a primetime game show. In 1996, I created the uberpopular "Couch-to-5K" (C25K) running program, which has helped millions of skeptical would-be exercisers take up jogging. (My motto for fitness is the same for user experience: no pain, no pain.)