Yesterday, I received one of those pop up screens that you always love seeing. It was a notification that there was a new system update available but my battery was too low to install it. I plugged in the charger and the option to update now appeared.
The upgrade was from Jelly Bean 4.1.1 to the new Android OS 4.1.2 which gives very slight new features but the most obvious one is a landscape home screen similar to the one above. You are also now able to interact with notifications from the slide-down menu which allows you to see more details such as expanding the notification of "4 new emails". When you hold down on the notification and drag down you will be able to see the subjects of each of the emails.
Also there have been some other performance and stability improvements and nicer widgets to use on the home screen. Viewing images and deleting them is now also much easier. More details to follow but please leave a comment if you have noticed other changes resulting from the new 4.1.2 update.