Android 4.0 Ice Cream Sandwich

Android 4.0 Ice Cream Sandwich is a version of Android that was released on October 19, 2011. The Ice Cream Sandwich update is typically considered the most significant update in the history of Android.

New Features
The update introduced numerous new features, including:


 * Virtual buttons in the UI, in place of capacitive or physical buttons
 * Separation of widgets in a new tab, listed in a similar manner to apps
 * Easier-to-create folders, with a drag-and-drop style
 * A customizable launcher
 * Improved 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 error correction on the keyboard
 * Ability to access apps directly from lock screen
 * Improved copy and paste functionality
 * Better 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, allowing up to 16 tabs
 * Automatic syncing of browser with users' Chrome bookmarks
 * A new typeface family for the UI, Roboto
 * 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
 * Ability to shut down apps that are using data in the background
 * Improved camera app with zero shutter lag, time lapse settings, panorama mode, and the ability to zoom while recording
 * Built-in photo editor
 * New gallery layout, organized by location and person
 * Refreshed "People" app with social network integration, status updates and hi-res images
 * ISC_Pedia-Cativa_pad_8_tablet.jpegid Beam, a near-field communication feature allowing the rapid short-range exchange of web bookmarks, contact info, directions, YouTube videos and other data
 * Support for the WebP image format
 * Hardware acceleration of the UI
 * Wi-Fi Direct
 * 1080p video recording for stock Android devices
 * Fixed minor bugs on the Verizon Galaxy Nexus
 * Numerous bug fixes and optimizations
 * Improvements to graphics, databases, spell-checking and Bluetooth functionality
 * New APIs for developers, including a social stream API in the Contacts provider
 * Calendar provider enhancements
 * New camera apps enhancing video stabilization and QVGA resolution
 * Accessibility refinements such as improved content access for screen readers