Google announced Ice Cream Sandwich back in October last month, and pushed the latest version of Android to AOSP in December. Within weeks of releasing the code to the public, all major Android manufacturers announced that they will be updating their 2011 flagship model to the latest version of Android by end of Q1 in 2012.

Until now, only a handful of Android tablets have got the ICS update, while no non-Nexus handset has been updated to Ice Cream Sandwich. Considering March has already begun, companies like HTC and Samsung only have 3-4 more weeks to stay true to their word.

Now, it looks like HTC has already finished working on the final Ice Cream Sandwich update for the Sensation and is awaiting certification from Google. Why do I say this? Because the final Ice Cream Sandwich update for the Sensation has leaked on the Internet earlier today.

The final build comes with Sense 3.6 with the firmware number 3.3.2.xxx, and barely offers any of the visual treat that Google introduced in Ice Cream Sandwich. Nevertheless, there are still some UI changes and new features that will be appreciated by Sensation owners.

Considering the jump from Gingerbread to Ice Cream Sandwich is pretty big, there are a lot of underlying/low-level changes so rooted users can not directly flash a leaked CWM version of the ICS ROM.

HTC Sensation owners, who are interested in flashing this leaked ICS ROM, need to make sure that they have unlocked the bootloader on their handset and have Super CID. A step by step guide on how to install the Ice Cream Sandwich firmware on the Sensation, along with the download can be found here.