Not sure how new this is, but I noticed this morning in our Adsense account, the ability to create "video ad units", and the above is an example. I guess it was only a matter of time before Google's aquisition of YouTube resulted in this kind of unit, but it's still very underwhelming - they've just inserted a text ad into the frame. I also have no choice over what content goes in the unit itself - I can just choose from broad categories (in this case, "Comedy"). Chalk this one up to "nice try, but no prize".