I hope Microsoft do a better job of audio support in W10 than the complete lack of audio features currently in IE11. Maybe they'll ship W10 with Chrome .
Just been playing around in Win10 10130.
Spartan:
C2 projects fail to load - blank screen.
Also Spartan will not go full screen -at least I cant find anywhere to tell it to.
IE:
Loads fine, runs fine.
Audio don't know if it has improved or not.
The taskbar always shows - even when going full screen.
Firefox:
Loads fine. 60 fps constant. Visible jerkiness constant.