I agree. I think that a lot of the people using IE6 are in corporate environments and they can't upgrade until senior management make the decision. When they do upgrade, I reckon the majority won't be to Chrome, but to IE7, as there will be too many corporate Intranet apps that will "just work" on IE7 but take extra time to get functioning on Chrome or Firefox. The risk and cost will be too high for them to change.