Yes, sort-of...
The reason I say that is because I made a PUMA today out of a Hillary supporter. Started chatting politics, she mentioned the election - that she expected it to go Obama as that's the way these things usually go, even though she wasn't too happy with it. After feeling her out a bit, it turns out she was supporting Hillary in the primaries, I explained that there are alot of annoyed Hillary folks who have chosen to support McCain, in part to poke Obama in the eye and in part because a MCCain-Palin win means Hillary is the frontrunner in 2012. I mentioned PUMA and the dozens of sites on the web, which seems to have gotten approval. No cops, bushes, black helicopters or tears of joy.
Anyway, It seems pushing Hillary folks to PUMA may be the way to go, instead of outright suggesting McCain-Palin, which may get more resistance.
Then I suppose the success or failure of a McCain-Palin administration will determine what happens in 2012.