Weak dollar good for the U.S.?

Lately, some of the eternal optimists on the financial news channels, who constantly remind us that a recession will be avoided (sorry guys, we're already in one), have been chirping about how a lower dollar is good for exports. That may be true, but is that the whole story? Here's a short but good article by Domenick Armentano, and it questions how good a weak dollar is for the U.S. economy. Thanks to mises.org for posting Armentano's article today.