IE8 will not be IE7
this is good news. and a smart choice. IE8 was slated to behave like IE7 unless an additional meta-tag was added to make it act like IE8 (yeah, well...). now, MSFT has reversed this decision:
We’ve decided that IE8 will, by default, interpret web content in the most standards compliant way it can. This decision is a change from what we’ve posted previously.