Google have now made Ice Cream Sandwich available on the Google Nexus S.

The update is rolling out across the world right now, so you might have to wait a while till it hits your area.

However, the update can also be installed manually by downloading it on your PC (download here) , renaming it to update.zip and copying it to the root of the SDcard partition on your Nexus S. After rebooting your Nexus S the update should automatically install.

Android Ice Cream Sandwich brings a number of improvements and new features including Face Unlocking, WiFi Direct support, Visual Voicemail and Voice Input. You can read more about the Ice Cream Sandwich update by clicking here.

The Nexus S is only the second mobile to support Android Ice Cream Sandwich, which first debuted on the Samsung Galaxy Nexus.

The Nexus S has a great specification which includes a 4 inch touch-screen, 5 mega-pixel camera, 16GB of onboard memory and a 1GHz processor. You can read 3G's review of the Google Nexus S by clicking here.