Verizon is finally introducing the Android 4.0 Ice Cream Sandwich (ICS) update to subscribers of its Samsung Galaxy Tab 7.7.

The exact date of the roll out is unknown. However, the carrier has already posted on its website all the necessary information on how to update the Galaxy Tab 7.7 to ICS.

Google released ICS in October 2011, but it has taken Verizon this long to introduce it to its devices.

The carrier promised the update in March and began the roll out last week, bringing it to users of its Motorola Droid Xyboard 8.2.

Those wanting the update will have to download a massive 283.1MB, but In return they will get a host of new features including Face Unlock, a new home screen layout, calculator app and support for Read and Delivery receipts in email.

Other features include better video calling functionality and a data usage monitor which allows you to see your data usage all in one place and set warning levels.

On its website discussing the ICS update, Verizon says, "The addition of a new Video Calling icon to the apps menu makes it easy for you to begin making video calls to your friends, family, and coworkers with the free video calling apps ooVoo and Tango."

Some additional features it lists on its Web site include:

• New Meeting Invitation for Exchange accounts added.
• Redesigned Gallery app providing more ways to sort album by time, location and tags
• Pinch to Zoom functionality added to HomeScreen and Main Menu Screen
• Google Plus integration
• New music icons on the Music App
• Desktop View added to the Internet Browser

The jump from Honeycomb to Ice Cream Sandwich is substantial. However, it will probably be the last update to hit the Galaxy Tab 7.7 because Verizon has no plans to introduced Android's latest version, Jelly Bean, to the device.

The 7.7-inch tablet, released in September last year, has been the subject of intense litigation between Samsung and rival Apple. It has been banned in Germany after being accused of infringing patents belonging to the iPad.

The latest version of the device, Galaxy Tab 2, already comes with Ice Cream Sandwich. Samsung's other new device, the Galaxy Note 10.1, is its first to feature Jelly Bean.