K
kingrob
Guest
After looking at the new features list on Android version history, Wikipedia, I honestly believe it is. 
* Smoother user interface:
1) Vsync timing across all drawing and animation done by the Android framework, including application rendering, touch events, screen composition and display refresh
2) Triple buffering in the graphics pipeline
* Enhanced accessibility
* Bi-directional text and other language support
* User-installable keyboard maps
* Expandable notifications
* Ability to turn off notifications on an app specific basis
* Shortcuts and widgets can automatically be re-arranged or re-sized to allow new items to fit on home screens
* Bluetooth data transfer for Android Beam
* Offline voice dictation
* New interface layout for tablets with smaller screens or phablets (whose screens more closely resemble that of a phone)
* Improved voice search
* Improved camera app
* Google Wallet (for the Nexus 7)
* High-resolution Google+ contact photos
* Google Now search application
* Multichannel audio
* USB audio (for external sound DACs)[73]
* Audio chaining (also known as gapless playback)
* Stock Android browser is replaced with the Android mobile version of Google Chrome in devices with Android 4.1 preinstalled
* The abillity to allow other launchers to add widgets from the app drawer without requiring root access.
Source : http://en.wikipedia.org/wiki/Android_version_history
* Smoother user interface:
1) Vsync timing across all drawing and animation done by the Android framework, including application rendering, touch events, screen composition and display refresh
2) Triple buffering in the graphics pipeline
* Enhanced accessibility
* Bi-directional text and other language support
* User-installable keyboard maps
* Expandable notifications
* Ability to turn off notifications on an app specific basis
* Shortcuts and widgets can automatically be re-arranged or re-sized to allow new items to fit on home screens
* Bluetooth data transfer for Android Beam
* Offline voice dictation
* New interface layout for tablets with smaller screens or phablets (whose screens more closely resemble that of a phone)
* Improved voice search
* Improved camera app
* Google Wallet (for the Nexus 7)
* High-resolution Google+ contact photos
* Google Now search application
* Multichannel audio
* USB audio (for external sound DACs)[73]
* Audio chaining (also known as gapless playback)
* Stock Android browser is replaced with the Android mobile version of Google Chrome in devices with Android 4.1 preinstalled
* The abillity to allow other launchers to add widgets from the app drawer without requiring root access.
Source : http://en.wikipedia.org/wiki/Android_version_history