Google Video Ad Viewed In The Wild

I've read about them, never seen one in action but today I viewed one and it's pretty slick. The ad can be seen on this Digital50.com page. The Google video ad is for Proximitymedia.com.

AdWords Click-to-Play about page.

Update; Barry Schwartz of Search Engine Roundtable and contributor to Danny Sullivan's Search Engine Land was kind enough to inform me the ads have been around for awhile now. As much time as I spend online I am surprised I've never seen one before today. Barry provided me a
comprehensive list of articles from his archive on the subject of Google Video Ads.