AT&T is offering some major trade-in credit for T-Mobile customers who want to make the switch.
If you are willing to switch plans, AT&T will offer you $450 per line when you trade in an eligible handset.
First, they offer you $200 for the actual switch. Then, if your phone is eligible, they give you an additional $250 promotional card. Of course you are going to be signing up for a new contract and buying a new smartphone.
However, as CultofAndroid notes, “don’t expect the full $250 credit unless you have a recent smartphone in good condition.” Yeah. They’re probably right about that.