You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature currently requires accessing the site using the built-in Safari browser.
Nope, the TuneIn and Slacker favorites are still there, as is the official "Tesla" branded favorites channel (pop). My only gripe is I cannot find a way to add a Spotify playlist to the Tesla favorites channel feature.