Does anyone know the coverage at SEA for WiFi? I know that T-Mobile is supposed to make a hotspot at the UA RCC (lower level N Satellite) but their timing is unpublished. Upstairs there's a LaptopLane, which I think is affiliated with WayPort.

The AA AC is supposed to have something and I know there's a SK hotspot in the mezzanine level of the Satellite.

The Port of Seattle supposedly sent out an RFP for a 802.11b proposal earlier this year. But, like any civil government project, it could be years in the making.

Any coverage in the main terminal?

It seems to me that SEA (probably like any other airport) is going to have several different providers making the most cost effective (read this as rip-off) method of WiFi being on-demand.

Looks like Wayport offers WiFi (802.11b) service from most places in the terminal - for details see: http://www.portseattle.org/seatac/finding/services.htm

Yes there is Wayport available. I have used it in the C&D terminal.

Also there is free wireless in the Alaska Air board room.

Hmmmm.....does Alaksa Air Board Room honor WorldClub Cards?

I don't know about the Alaska Board Room honoring WorldClub cards, but you can pick up their WiFi signal if you sit at the Taco Bell right next door.

Taco Bell is closed during remodeling. In terminal A, the American Airlines AAdmiral's club has t-mobile. I'm not sure what the reception is like if you sit outside.

if you have an AS ticket too

Wayport is available nearly everywhere... $6.95 for a full day (well, till mid-night). Works well, I've been able to move around the airport and maintain my connection.