Here’s an idea: Take a phone that can’t be as “smart” and allow users to opt-in to a 10/month subscription to an all-you-can-listen music service. Sounds lucrative on paper, but the question is how this service will do in practice.
But this is more future thinking than you may suspect — mobile devices will be the dominant way people connect to the internet and consume mass media before too long. By removing the app and making the service native, there is a lot of power there. The con of this service would be the high maintenance: apps are flexibly distributed (i.e. can be ported to other devices) whereas native functionality is easily transferred to future devices (even those within Cricket).