OMG OMG OMG Felicia Day is in that, I didn't even know it was out yet XD. Just so you guys know Felicia day is AWESOME!!!! She is the star in the webisode 'The Guild' which is a Guild in WoW that meets in RL and stuff.
Yes, that is pretty great, which is only natural considering that it was made by Joss Whedon. For the record, though, that's only going to be available for free (well, legally, anyway) until Sunday. After that, you'll have to buy it off of iTunes or wait for the DVD.