We'll see how this works out, google video ads! http://adwords.blogspot.com/2006/05/click-to-play-video-ads-for-adwords.html
hope so.. but u never know. In normal ad, if I am interested, I will click and go the advertiser website.. Now I need 2 clicks -- first to watch the video, and second for actual click.. I may loose interest after watching video.
There was one showing up on my site here: http://www.overheardinvancouver.ca/2006/06/08/bend-it-like-beckham/ It is a car commercial, but I have a feeling due to the contextual nature of Google ads your mileage may vary. (No pun intended)
I don't know... I think it says something that there are so few of the ads available. Also, keep in mind the increased difficulty in producing an ad for AdWords versus simple copy editing for a link ad or Photoshop-ing a banner. I would be happy with more straight forward image ads. This looks like a keeping-up-with-the-jonses on Google's part.