AT&T and Samsung today announced pricing and release details for the Samsung Galaxy Tab. The 7-inch Android tablet will go on sale November 21st and will cost $649.99 with no commitment. Two pay-as-you-go data plans will be available to customers looking for 3G connectivity — a $14.99 option for 250MB and $24.99 for 2GB. Data allowances will be good for 30 days. AT&T is also offering customers a free $50 Media Hub Movie Rental credit with each Galaxy Tab purchase.