That means you can have sensitive information hidden, you can turn off notifications for entire apps, and when a notification comes in, a double tap will open the app. (pocket-lint.com)
You can also expand your screen to a wide type of bird's eye view, from which you can drag entire app groups from one place to another. (howtogeek.com)
This won't necessarily be for entire apps, but specific features. (androidheadlines.com)