What do you do when you have a 3 hour layover in Sea- Tac? You start at the chair massage kiosk fpr 30 minutes of removing the work-monkey from your back. Then a nice sit-down brunch at Anthony's (seafood omelette mmm). And that pretty much takes you up to boarding time.
One additional nice thing about the iPhone: you don't have to keep track of which airports charge for wifi.