Is there a fixed name for pattern like Facebook's current sliding dashboard style pattern, or the swiping tabs in Android Market
The bright example of carousel element is switching of albums in iPod. Sliding tabs is an example of the widespread tabs adapted under management by gestures for touch devices. The difference between them consists in initial appointment & gestures. Carousel navigation element was used for a navigation/choice of a concrete element, while tabs for navigation for groups of elements. It is underlined in a difference of gestures for focus: Slide for Carousel vs. Slide & Tap for focus tab.
Facebook app based on Horizontal scrolling layout.
It usually used together with the visual menu: same as Page indicators or layout indicators for multi direction scrolling. Good practice considers the fixed arrangement of an element of management, for example at a scrolling in extreme left placing you always will find search in Apple devices.