Did you just buy a nice fancy new T-Mobile 3G/4G phone? Well, AT&T is planning on making it slower. That's right, AT&T's announced plans to end T-Mobile's 3G service and replace it with 4G.
Of course, it won't happen overnight, but at some point you are going to have to get a new phone in order to keep using 3G speeds. If you have a 4G T-Mobile phone, you are still going to have to do this as T-Mobile's current "4G" phones are actually 3G+ phones.
Here's to hoping AT&T offers some pretty hefty discounts to current T-Mobile customers to upgrade their phones!