The adult industry continues to pitch iPod porn, with Playboy introducing adult podcasts.

The video podcasts (called the Playboy Bodcast) will be updated weekly, and feature a Joke of the Day, an "Ask Hef" feature and video advice.

"Our new service allows users to take some of our coolest features and download them directly to their portable players. Can you say: Playboy on the go?" the publishers ask.

Playboy also plans a premium (paid) version of the transmission in future.