If you are one of the daring souls who took the plunge.
I've noticed the following so far:
- Clicking the X in the Metro top bar does not fully close the app. It still appears in Task Manager.
- The Start Screen now displays "x New Apps Installed" next to the down arrow.
- Maybe placebo, but to me everything runs a bit more smoothly.
- I much prefer the old (8.1) right-click behaviour in the start screen and apps.
I've been using it for only about 12 hours, so I'm sure there's more to discover.
Edit: Apparently my right-click in Start Screen stopped working. Ah well...