Contradiction of complaints
I am glad that MS is finally making a version of IE that supports standards but the complaints about adding a meta tag to indicate a page is compliant seems contradictory.
The people complaining are the most active developers who have worked on getting their code to be compliant. These are the same people who use templates, dynamic languages and other time saving functions. Wouldn't these people be the most likely to actually do something with their site (add a single line of code)?
Do you believe that the person who made their site to only work properly in IE and doesn't consider the other 20% of web traffic important enough to support is going to redo their entire site to make it compliant?
If MS doesn't use a meta tag to identify a compliant page and displays all pages in standards compliant mode who gets the support call when your mum goes to a site that is all borken? I doubt that it would be the web site's developer or even the company who's site it is. I am sure that it would be the PC manufacturer or MS.
All in all I think that adding a single meta tag is easy enough and will welcome only having to develop one set of CSS and JS for all browsers. This savings will be much more then the time it takes to add a single line to my header template.