Unannounced Jelly Bean Features (including more secure Face Unlock)

Hi everyone,

I found the article on the verge regarding the Nexus 7 Guidebook being up on Google Play Books, and I came across an interesting feature:

For improved security, you can now set Face Unlock to request a blink when you unlock your tablet.

Not insanely exciting, but still interesting.

That got me thinking, maybe we should have this thread for all the Jelly Bean features that you heard or saw, but didn't warrant their own thread.

You can see the Nexus 7 Guidebook here: https://play.google.com/store/books/details/Google_Inc_Nexus_7_Guidebook?id=gKmQD47OvCYC#?t=W251bGwsMSwyLDUwMSwiYm9vay1nS21RRDQ3T3ZDWUMiXQ..

Also, Chrome now can have unlimited tabs for Android.

And lastly you can download Browser for the Nexus 7 Tablet "if you require Flash" from the Play Store.

So I'm curious to see what you guys have found.