I'm considering joining one of the music streaming subscription services (MOG, Rdio, Spotify, etc.) to use on my iPad in my truck. I use Pandora now, but would like a little more control over hearing specific songs. I would like it to have a native iPad app or even an iPhone app that I can use on the iPad. As I'm using it in a mount in my truck, an app that supports landscape would be even better for the aesthetics. If anybody has any input, let me know!! Thanks.