There was also a recent poll, showing that libertarians overwhelimngly support Obama.
Here it is:
Libertarians Favor Obama and Other Looks at Election 2008
http://www.freerepublic.com/focus/f-news/2041168/posts
“Libertarian voters ... favor Barack Obama over John McCain by a 53% to 38% margin. “
Suggest going from the link above to the actual Rasmussen report article, which has a lot more detail.
I saw it, but for Libertarians to prefer a hard-line statist totalitarian big government type over McCain (despite McCain’s shortcomings), calls into question their own actual ideological preferences.