some visual polish and not a lot else
My god the apps look terrible still. Its a joke that calculator is pretty much unchanged since windows 95. The interface where a window opens another window and another. UX is terrible. Even microsoft have white papers on why you should never do this. And yet they still do it.
What a shame from a company that used to be so innovative. They have failed to realise that an OS is more then just something to get you from the BIOS to a GUI. Infighting killed many a fantastic project internally. Microsoft *get* the internet, but alas many powerful voices dont want to change from the win / office model.