Awesome cartoon! Although, I'm a native English speaker (General American accent), but I couldn't make out some of the lines either, even after turning it up and listening multiple times. Too shrill, maybe? What I could hear was hilarious, though. I'd love a still-frame printable .pdf version of each comic though; I wouldn't have to worry about missing the jokes! (Also, does anyone else usually have some kind of buffering issues with these videos?)
I do hope they continue with this series for quite a while! Also, I think it'd be cool if DDI started hosting OotS, or more D&D/PennyArcade tie-ins.
Finally, did anyone else notice the credits? The kobold voices were mostly (all?) D&D staffers, I think. (...Digitally altered, I hope.)