i saw
1. under settings->system->display there is an orientation option and it was set to Dynamic in the video
2. i also saw "Share Internet" under settings. probably tethering (hopefully there is bluetooth as well).
3. i saw when she scrolled up in the list of apps (icons), the screen dims out (she lifted her finger; so can't tell if it will dim out completely to lock or just dim to a certain degree). maybe it's visual indicator to tell you there are no more pages to scoll?
4. also, a screenshot from that page that shows camera with more options. it looks like they have implemented
- ISO levels
- show gridlines
- timer

i like the fading screen visual indicator when you reach the end of the list of apps. but can be confusing for first time user.

what i was hoping for really was grouping of app icons. can't wait to get this update anyway.