Whoa!  We just got a really good look at a brand new 2010 Subaru Outback wagon with the glass roof.  It's a really nice looking car...and the factory installed roof rack is something we haven't seen before from Subaru.  The car is equipped with a side rail running front to back. But wait...the siderail is modular and can pivot across the car and become a crossbar too!
In the siderail configuration, there isn't much versatility to add a tower system like the Thule 450 Crossroad.  Tthe bar spread just isn't there - only about 24 inches, which isn't good for really anything, except maybe a ski rack.
When you configure the factory roof rack to the crossbar position, you've got a nice bar spread - about 30". 

While this car was here for a windshield repair, we talked about putting a narrow cargo box and a bike rack that attaches to the factory crossbars, like the yakima forklift on the roof for the customer.  I never thought I'd say this, but I think this new 2010 Subaru Outback is best configured with bike, ski and cargo accessories using the factory installed crossbars!