YMMV: I was presented with an offer for $79 average /night that hotel
was within 5 mi of the Conference Center. A cab ride to the conference
and you would likely be under the $119 offered at the DoubleTree.
Hope this helps those of you still looking for a place to stay.
Go to: http://www.travelportland.com/
There are details about The Portland Big Deal hotel program on the
front page. We just booked the Red Lion which is .1 mi away from the
conference for $89/night + tax, title, and license. (3 Star hotel if
that means anything to you). There was a La Quinta offering for $73/nt
which appeared to be about 6-8 blocks away from the convention center.
Hope this helps other folks looking for a Rails Conf 2007 Hotel,
Jim