Solution to what? Data caps being too low? I think this is a perfectly reasonable implementation of a bad idea. It's good for the T-Mobile customer today, bad

Solution to what? Data caps being too low? I think this is a perfectly reasonable implementation of a bad idea. It's good for the T-Mobile customer today, bad for everyone in the long run. And which is it? Either you care that your streaming app is whitelisted or you don't. Since it's the single biggest usage of data on your phone (same for me, btw) I'd guess you probably care. If I had a 1GB cap on my data service, you'd have a very hard time convincing me to switch from a favored streaming service to a non-favored one.