Following its strategy of acquiring smaller, lower-profile niche technology companies, Apple recently announced its recent purchase of Burstly, for an undisclosed amount.
In simplest terms, Burstly provides developers of iOS software a means for managing downloading and testing applications on devices. Typically, in software development, you would have to add devices to be used for testing, push the application out to the device, make tests, make changes and repeat. The company provides a platform that allows devices to be provisioned and managed, as well as which software each device should be allowed to download and test.
We can probably expect to see a Beta App Store function to be rolled out as Apple finds ways to integrate this with its existing systems.