2 things I hate about the N9, well actually 4.
1) The only flash capable browser is very slow. It is extremely annoying.
2) When I click on a facebook newsfeed item the little uninformative facebook thing comes up which says exactly the same brief thing I just read and then when I click on that link and I'm in landscape the status bar is stuck in portrait because the fb app is landscape only so I can't peek
3) The screen is too small for typing and swype, I'm constantly hitting wrong keys.
4) Takes way too long to rotate. If you can fix that with sailfish I'm sold.