I recently discovered the audioPod group on last.fm. They're using and discussing Lastpod, so please check it out and join up. It's great to see users excited about the application. Please help spread the word to other ipod users.
Also, if you have any problems that you know are a bug (or enhancement requests) please submit them. Or please help out by contributing a fix for one of the open issues. No login is required, just post away.