I miss jump lists on pinned start menu items. I never liked pinning things to the taskbar because when you run those apps, the launcher becomes the taskbar item and you lose the launcher. So I always pinned things to the start menu. Now I can't do that and have the jump list.

I also miss Microsoft being the non-walled-garden OS company. There's no way I'm granting them a monopoly on what can and cannot be installed on my general purpose machines. If there's one thing I hope they change - it's this. Let me install Metro apps from whatever source I want.