Google lists what's new, in Jelly Bean II

Google listed out a summary of what's new in Android 4.2, Jelly Bean

This includes few new items Accessibility, Android Bean(NFC, Bluetooth,etc.,), Audio Accessories, Camera, Clock, Face Unlock, Internationalization, Lock Screen, People, Widgets, Google Now, Currents.
Android 4.2, Jelly Bean improves on the speed and simplicity of Android 4.1 and includes all new features – Photo Sphere and a completely redesigned camera app, new Gesture Typing keyboard, Google Now with all new cards, and much more.

• Everything in Jelly Bean feels fast, fluid, and smooth. Moving between home screens and switching between apps is effortless, like turning the pages of a book.
• Jelly Bean improves performance throughout the system, including faster orientation changes, quicker switching between recent apps, and smoother and more consistent rendering across the system through vsync and triple buffering.
• Jelly Bean has more reactive and uniform touch responses, and makes your Android device even more responsive by boosting your device’s CPU instantly when you touch the screen, and turns it down when you don’t need it to improve battery life.

  It include few new items like People, Google Now, Currents, etc., to stay update with current trends and google.

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