The web is moving forward. And it is so great to see this. I know it sounds a bit dramatic but this is exactly what happened before with two CSS proposals (CSS Regions and CSS Exclusions).
As a result of the past six months or so of work between Adobe and the other parties involved in the process the specs were updated this very month (May 2012) and new working drafts have been published.
If you want to read more about these proposals or to understand how the standardization process works read here.