I can't do better than the flaks, so here's their spiel:
"the new trademarked tagline is the centerpiece of a powerful new brand platform that will define and promote the unique Seattle visitor experience and drive the city’s tourism marketing programs. The metronatural brand concept was designed to highlight Seattle’s rare and uniquely-marketable combination of urban and outdoor experiences."Alas, the Seattle PR people plan to make metronatural "visible in Seattle and around the world."
The word is the result of a year's work and apparently involved input from a vast number of stakeholders. The gambling houses may now commence on setting odds that "metronatural" enjoys a longer life in the realm of spoken words than "metrosexual."