Remember the Ice Cream Sandwich update for the HTC Sensation 4G that we told you about yesterday? Turns out that it does more than just bring ICS - it also kills free tethering.
Wait, what? T-Mobile had free tethering? Technically, no. But in reality, yes. Here's how it used to work: T-Mobile offered a tethering service for around $15 per month. Somehow, though, there was a "technical limitation" that actually prevented them from charging for the service on Android devices (though Verizon, Sprint, and AT&T have never had a problem taking our money for the same thing).