There's an interesting discussion at Forumosa comparing Popup Chinese to ChinesePod and asking for feedback from people with experiences with both:
http://www.forumosa.com/taiwan/viewtopic.php?f=40&p=1389634
We obviously believe there's a significant difference in pedagogical approach and I'd actually like to reply at some point. I disagree with the one poster that our intermediate stuff is less difficult (I consider it much more challenging, although less focused on arbitrary vocabulary). That said, if anyone has any thoughts and wants to drop by and join the discussion, I'm sure it would be appreciated by the community, and we'll certainly find it useful to read as well.
Oh yes, and Happy New Year. :)