A Libertarian Moment?

Reason's Nick Gillespie thinks we are "in the beginning of a libertarian moment" (or so he told the NYT). Like others, including Michael Kinsley, he believes libertarians could be a significant political force this November. Whereas most libertarians have tended to vote for Republican candidates, the war and profligate spending (among other things) have caused an increasing share of libertarian voters to support Democrats. This leads some to think the libertarian vote could be up for grabs. Given Bob Barr is the Libertarian Party nominee, I would be inclined to agree. It's not at all clear who a libertarian should vote for (assuming, of course, that a libertarian believes he or she should vote at all).