Where to store data for REST-less Ember app?

I'm building an Ember app that contains all necessary data internally, and doesn't make any writes to a database. I'm currently storing my data in a route as an array of POJOs, but this obviously isn't sustainable once a second page is added and needs access to the same data.

Where is the canonical place to store data in a REST-less, no-writing Ember app? Does it still even make sense to use Ember Data for such a thing?