Tech2
Android L release could bring the OS to ATMs, self-service kiosks
Tech2
While Google has only released a developer preview for Android L, many of the things we will see in the final version of the OS are already here.
Source: tech.firstpost.com
Android Police reports that Task Locking would allow one app to take over your devicewithout letting other apps show notifications or load activities. Users will not be allowed to switch apps either, so that just the top app is running and cannot be closed.