A new AdWords feature has appeared in the results today. A coupon offer and a typical HTML button that reads "View Offer"
We have not seen anything inside of AdWords under extenstions or anywhere to include this yet. It may be a small private test market. It is possible that the information is being pulled from Google Places, but seems unlikely. This search did not have any local intent, but with Google, you never know what information they are working off of.
Take a look:
Offers are still the new hotness, with everyone riding the Groupon wave. Google is no exception.