The team behind XDA-developers has posted a video showing how they successfully hacked Amazon's Kindle Fire and installed Android 4.0 (codenamed Ice Cream Sandwich) on it.

It is the first time that the Kindle Fire has been showed running a tablet version of Android, and not its customized version of Android 2.3 (codenamed Gingerbread), which is smartphone version of the Google's mobile operating system.

The innovative folks at XDA-developers have called it "pre-alpha", apparently because it technically works, but it is extremely buggy.

Audio doesn't work consistently, while video playbacks are pretty much cent per cent broken.

Separately, Amazon rolled out an over-the-air software update (6.2.1) for the Kindle Fire to fix various touchscreen troubles and enhance overall performance.

Rolling out the software update, Amazon said in a statement, "This software update increases flexibility & performance, enhances touch navigation interest, provides you the alternative to opt which stuff viewable on the carousel and include the facility to set a password protection on WiFi access."

The seven-inch Kindle Fire has become the world's second best-selling tablet, with more than one million sales per week.