This screenshot is from the app called AudioManager. The UI has the new Ice Cream Sandwich kind of look but it looks that way on Gingerbread as well. In the screenshot, the layout you are seeing is that of Volume tab. When you swipe the screen to the left, it reveals the next tab called Profiles. Nowadays I am seeing this type of UI in many apps.
How is this done? Is it some sort of a modified Tabhost?