Interesting idea that Google will develop a CMS. It could integrate ads and content, that’s for sure, however, they do have a habit of starting a product out, and just letting it go on as beta for years.
If and when the CMS becomes reality, the product would tie in to Google’s publisher-facing ad stack including its DoubleClick for Publishers ad-management tools and its yield management capabilities acquired via AdMeld, now housed within DoubleClick Ad Exchange. Other likely functions include integrated paywall support, commerce features, content recommendation links and plugins to ad sales-management tools. (via Google Explores A Unified CMS And Publisher Ad Platform)