You can directly access the apps from the lock screen
Upgraded copy and paste functionality
Support for the WebP image format
Hardware acceleration of the universal Interface
Soft buttons from Android 3.x are now available for use on phones
Widgets in a new tab can be separated, listed in a similar manner to apps
Folders can easily be created with a drag-and-drop style
Launcher Customizer
Enhanced visual voicemail with the ability to speed up or slow down voicemail messages
Pinch-to-zoom functionality in the calendar
Integrated screenshot capture (accomplished by holding down the Power and Volume-Down buttons)
Improved voice integration and continuous, real-time speech to text dictation
Face Unlock, a feature that allows users to unlock handsets using facial recognition software
New tabbed web browser under Google’s Chrome brand, allowing up to 16 tabs
Automatic syncing of browser with users’ Chrome bookmarks
A new typeface family for the UI, Roboto
A data Usage section in settings that lets users set warnings when they approach a certain usage limit, and disable data use when the limit is exceeded
Shut down apps ability that are using data in the background
An improved camera app with zero shutter lag, time lapse settings, panorama mode, and the ability to zoom while recording
Built-in photo editor
You can organize New gallery layout by location and person
Refreshed “People” app with social network integration, status updates and hi-res images
A near-field communication feature (Android Beam) allowing the rapid short-range exchange of web bookmarks, contact info, directions, YouTube videos and other data
Android VPN Framework (AVF), and TUN (but not TAP) kernel module.
