If you want to get the iPhone 5 or iPhone 4S as part of T-Mobile’s “no money down” offer, you’d better make some plans to head to a store pronto. T-Mobile confirmed to AllThingsD that, starting Saturday, neither device will be available as part of that promotion. (The iPhone 4 will still be available for no money down.) “As is the nature of promotions, pricing moves are temporary,” a T-Mobile representative told AllThingsD. Starting Saturday, those wanting an iPhone 5 will have to pay at least $145.99 down, with that price augmented by 24 monthly payments of $21 per month. The company did not give a reason why the iPhone models were being pulled, even though most other smartphones remain available for no upfront payment. “However, combined with our Simple Choice plan, it’s easily one of the most affordable ways to purchase the latest iPhone,” T-Mobile said.