Yeah, one of my Facebook friends is a dude we met at PAX who lives there and is heavily into promoting public transit (and other green stuff) in Seattle - he belongs to all kinds of citizen action groups. So he was pretty jubilant when they finally opened it. Sadly, the last link to the airport isn't finished quite yet - supposedly it'll be up and running by December, and until then they've got a shuttle bus that goes from the airport to the current endpoint. We thought about trying it out, but when we got in it was super late at night and we just didn't feel like messing about with it.