Steven from Pittsburgh on 4/3/2013 4:50:09 AM:
There's a Courtyard Marriott and now a Hampton Inn right on the trail in Homestead. In Pittsburgh there are several more hotels within a few blocks of the trail (not even counting the ones in downtown Pittsburgh). The official GAP website also shows a place in Boston PA (a little bit off the trail I think). I don't think there's anything in Duquesne or McKeesport, or on the Clairton connector. There are some hotels on the Montour Trail, but all up near the Coraopolis end, far from the GAP.