I, for one, would be really happy if they provided support for xhtml correct mime type. Not that it would save xhtml from a fiery death, but it would be cool to have at least one IE with that feature. 

Generated content, we know it _will_ have, or it wouldn't pass Acid2... 

I'm with you Alcides, uf's in the UI would be hella sweet. Let's wait and see... It would definitely come in accordance with them joining DataPortability (openid, ufs).