You can find such a feed here, if you are so inclined:
http://www.penny-arcade.com/padlc.xml
I'm able to integrate it into the podcast apps I use (Juice and iTunes), but it's really designed mainly to appeal to the iTunes gatekeepers - it's based almost completely off their sample. When I try to submit it to them, it says that it can't parse the file, which is odd because iTunes has no complaints. Anyweay, it should work just fine in the meantime, and all the existing "potcasts" are available.
(CW)TB
