The Samsung Galaxy Tab 10.1 was made available in Europe featuring the TouchWiz UI interface and it looks like Samsung is going to offer the experience for the other 10.1 tablets via an over-the-air firmware update which will start rolling out on 5 August.The Touchwiz UI offers multiple live panels which offer easy access to features like news, weather, social networking and multimedia. The mini mode try brings a group of shortcuts like Task Manager, Calendar, World Clock, Pen Memo, Calendar and Music apps. You can get more information on this update and the other features it offers by clicking here.
You will need a Samsung account in order to receive an alert asking you to update automatically but if you dont you can always manually update the Android settings menu.