Here's a quick heads-up, if you had your heart set on Samsung's Galaxy S 4G: T-Mobile says it'll actually cost $199.99 after a $50 mail-in rebate. That means you're paying $250 out the door for an HSPA+ capable Vibrant, not counting taxes and related fees. T-Mobile says the original $150 price was a mistake on its part, and while you're welcome to bring as many false advertising lawsuits as you'd like, we doubt you'll get very far.Samsung Galaxy S 4G will actually cost $200, unfortunately
