Google has announced that they are going to provide full integration with Google Play on their Google TV platform.
This means that all the media content available on Google Play would be available for streaming on the Google TV devices.
This means that you would be able to listen to music and watch videos rented or purchased from the Google Play store.
This functionality would be available by summer on the Google TV devices.
Google added about the new features available for developers:
For all our developers out there, we’ve got new APIs, libraries, and code to create whole new experiences for Google TV. Build the killer second screen app, take advantage of improved media playback and digital rights management, and integrate devices directly to Google TV.