gdgt

THE GALAXY ACE WORKS ON PLATFORM 2.2.1 that is froyo.
IF THE COMPANY DECIDES TO BUILT A ICS OPERATING SYSTEM TO SAMSUNG GALAXY ACE THEN IT IS DEFINITELY COMPATIBLE FOR THIS DEVICE.BUT U CAN UPDATE THE UR OS VIA KIES WHERE U CAN GET IT FROM OFFICIAL WEBSITE OF SAMSUNG

Interface

The most noticeable change with Ice Cream Sandwich is the interface - it might follow the same principles as the Android of old, but the way it's used is radically different in a number of ways.

Firstly, Android 4.0 is designed to work without buttons. That's not to say your Galaxy S2's keys won't work when the update happens, but going forward, it's going to be pristine bezels all the way.
Now to navigate around, you're offered three softkeys: Back, Home and Multi-tasking (or Recent Apps). The latter is particularly new for phones, and comes from the Honeycomb UI - basically a set of thumbnails that show recently opened apps.

Here's the new part: swipe sideways to shut down an application, which will greatly help reduce the battery consumption of your phone if there's something silently updating in the background.

The Home and Back buttons are the same as they've always been, but no longer have a 'long press' function attached... so you can't automatically call up the keyboard, for instance.

If you move into something media-ish, such as watching a movie or browsing the web like a pro, these three buttons shrink down to tiny dots, so you've got more of the screen to look at. However, remember what each dot does, as pressing it will take you home/open the recent apps etc and you might not want to.

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