I know there was a thread in Civil Aviation on this, (http://www.airliners.net/discussions/general_aviation/read.main/955244/) but feared some photographers might not see it there.
I made it down to BFI today to take some photos but it was too far away from the West side and too obscured on the East side. All I managed were some zoom lens shots from the Museum of Flight. When I left at around 5pm (when the sun set), they had refueled the a/c and moved airstairs up to it but it didn't look like it was leaving any time soon.
Anyone have a clue when it departs?