More guaranteed income discussion

The idea of providing everyone with a guaranteed basic income continues to be a relatively hot topic. The Cato Institute's Daily Podcast ran a recent segment on the idea (about 12 minutes, listen online or download the MP3), featuring Matt Zwolinski, a philosophy professor and blogger at the Bleeding Heart Libertarians web site. Zwolinski's blog post on the idea is here.  The post has many links for more information -- again, from a generally libertarian point of view. Tyler Cowen posted about the idea recently.  It seems to me that Tyler's post emphasizes that Zwolinksi also talks about -- only a "pure" guaranteed income will be better than the current welfare system, at least from the libertarian point of view.