Details about the Galaxy Tab are beginning to his the street following a Samsung event Thursday, including the fact that device maker will reportedly ship the Android-based tablet to the four largest U.S. wireless carriers: AT&T, Verizon, Sprint and T-Mobile. The Galaxy Tab will be shipped in Europe later this month. In the United States it will ship in late October or November. The Galaxy will be powered by version 2.2 of the Android operating system. It will have a 7-inch display. The tablet comes with a 3 MP camera with autofocus and LED flash.