As a triathlete, Eagle Scout, improvisational cook, hippy gardener, video game programmer and marketing drone, Adam Rakunas does a lot of stuff.   But mostly, he writes.   After spending nine years pouring out the details of his life on his personal website (now hosted at giro.org), he decided it would be more fun to write about people who don't exist.   A founding member of the Fictionados writing group, Adam published his novelette Greaseguns & Feathers through Austin's So New Media and is working on a novel about high school friendship, social networking and intelligent sex toys.   He lives in Santa Monica with his wife, Anne, who can crush him in two out of three triathlon events, but he thinks that's kinda cool.