So, it turns out I was wrong about Microsoft's IE8 standards-mode rendering switch - they're proposing that web authors use either a meta element or an HTTP header as an opt-in.
My initial gut reaction: wow, that sucks.( cut because it's web-geeky and looong )
So: flip the default around, and this is a good idea. Otherwise, it sucks.
Finally, a word from the lemurs.