Tethering is using your smartphone as a mobile wi-fi hotspot. It’s a handy way to get online when you’re, say, stuck at the dentist’s office and need to turn in some work. It’s also against the rules for customers with legacy unlimited-data plans from AT&T, for obvious reasons. One customer who has one of these plans is currently fighting with AT&T: they want him to stop tethering, and he says that he isn’t. [More]
