Zivush - 5:11 am on Mar 21, 2013 (gmt 0)
Google AdSense told me (last week) that an English announcement was coming "very very soon" to the AdSense blog. They added the extra "very", I didn't.
I guess/hope you are talking about enabling Arbitrary Sized Ads (non standard ads) to all publishers.
The moment this feature will be released, hundreds of sites will go responsive.