Lantern makes use of the built-in accelerometer to change channels just by rotating the head.
Connect to Lantern through Google Nearby. We use a proximity-based permissions, rather than user identity.
Tap a plane to change the channel and customise its appearance.
Lantern integrates with services you use already: Google Calendar (via the iCal format), Spotify and Google Play Music (via the Cast protocol)
Using the Processing-Android project, you can start development of a channel in the accessible Processing language, and then port it over to a channel if you like. This is how we developed Space Porthole!