Welcome back Chris Lydon! Those of you who have lived in the Boston area for a while (and who are NPR listeners) will recognize the name. Chris has been on local and national TV and radio, and a couple of years ago did some really early, innovative podcasting work (yes, before Adam Curry :-)
Anyway, he is launching a new radio show, called "Open Source", and he is debugging it in public, which is pretty cool! Check out the show's blog for background and also links to the first three beta test shows. They're great!
Amusingly the latest show on his site is about Wikipedia (of which I am a huge fan) and this is Wikipedia's entry about Chris! (Wheels within wheels!)