I'm glad that the doubling aspect of the game has been addressed. Even more I'm glad that Pabloesc said that the feature would be added shortly, and later revised that to identify this feature as *Key*. I agree, it is very important to this game and would certainly change the way this game is played and the way ratings are made.
Does anyone have a timeline for when this 'key feature' will be added? Is someone working on it now?