TravelMan - 12:15 pm on Oct 21, 2011 (gmt 0)
This is an awesome idea - each domain gets a key, Google sets the hash.
Sadly, it's probably easier ( and more profitable) for Google to ride the storm and just put up two fingers to the world.
People talk about single digit numbers today, but we all know how that number could rise considerably.
One important thing to keep front of mind is to not forget that they allow the query string to stand for their advertisers using adwords, which kind of blows any real privacy concern argument right out of the water. Either they're concerned about user privacy or they are not. They can't talk out of both sides of their mouths and expect us to seriously buy it.