Here's why the wireless carriers LOVE the bundle:
A lot of customers who have unlimited talk and unlimited text don't really need them. For many users, 1000 minutes, 1000 texts a month is more than sufficient.
The wireless carriers are making the same revenue whether the users use 10,000 minutes/text a month or just 1000 minutes/text.
If they can bundle "unlimited music," it's more revenue for them. Overnight, they will be the middleman between music that the music labels "sell" and the music that people "buy."
Right now, it's music makers --> Itunes or Amazon or Walmart or Target or Spotify ---> music users
It could soon be, music makers ---> AT&T/Verizon/T-Mobile/Sprint ---> music users.
Cricket Wireless is very successful with Muve Music (2 million + subscribers) by bundling: If you have an Android smarphone plan, you are bundled with Muve Music
The music industry is salivating at a Big Carrier doing the same. Cricket (4-5 million) is tiny compare to T-Mobile (50 million).
The music industry also know that if T-Mobile is successful with the bundle ($2 per subscriber), it will force the other carriers to follow suit.