i'd just like to point out a few easy-to-implement features that would make life much easier:
- "copy image location" option on right clicking a picture. a few of my friends who blog and use forums went back to their old browsers bacause of that feature missing
- the download manager should have an auto-clear option for finished downloads
- you could easily fit another row of "your most popular sites"
...and some bugs:
- CSS is really messed up. almost every site i visited had it's layout broken in IE9. even facebook
- ASP.net (and MVC) + IE9 not working at all. had to use firefox for development. there's just a message "IE cannot display the page"
- x86 version with ~5 tabs open used >600MB of RAM