See Your AdSense Earnings Data in Google Analytics
By integrating your AdSense account with a new or existing Analytics account, youâ€™ll have access to in-depth reports about user activity on your site. In addition to the wealth of metrics already available in Analytics such as unique visitors and visitor language, you’ll now have access to granular reports that break down AdSense performance both by page and by referring site.
So the rumor was true. You can now integrate your AdSense account with Google Analytics. The feature is being slowly rolled out but until then, this YouTube video will give you enough hints of what’s in store for you or check the screenshots. Good times.