T-Mobile will be discontinuing the "No Money Down" promotion that it launched in late July, reports AllThingsD. The promotion, which ends on Saturday, allowed new T-Mobile subscribers to purchase an iPhone with no downpayment, paying for the full cost of the phone with monthly payments of approximately $25. While the iPhone 4 and other smartphones will still be available with no money down, the iPhone 4S and the iPhone 5 will revert to T-Mobile’s original pricing terms. For the iPhone 5, customers will need to pay $145.99 upfront and make 24 monthly payments of $21. T