Today we’re feasting on Thanksgiving leftovers: AT&T said yesterday that it will take a $4 billion charge against earnings to reflect the hefty breakup fees it will incur should its proposed acquisition of T-Mobile USA fail. That fate seems very likely, of course, but CNNMoney illustrates two ways it might be salvaged — at least partially. AT&T could acquire T-Mobile’s tower and spectrum but allow the smaller carrier to sell its own devices and services, essentially becoming an MVNO. Or AT&T could simply continue to plug away at the deal and hope that a more favorable political climate arrives that could see the deal’s approval. I don’t think either scenario is likely, but AT&T has clearly indicated it isn’t going to give up this fight anytime soon.