Could a developer suddenly decide you can't use an app anymore? EA says yes

An interesting message has popped up recently for those who purchased Rock Band on iOS. The game, published by EA, is apparently going to be unplayable the last day of this month, and it’s not by accident. In a sense, we really don’t own these apps, we’re simply licensing them. For whatever reason, EA decided that everyone’s time was up.
Since this doesn’t happen very often, the assumption is that EA’s hand is forced due to licenses expiring with the music labels who provide the music for the game. EA could always extend those licenses but it’s hard to say if they’ll be going that route.

Android Phone, Could a developer suddenly decide you can't use an app anymore? EA says yes