iOS: Rexly is a new app for iOS devices that allows you to listen to music in your library, and then let your friends tune in and hear what you're hearing in real time. It also works the other way around: you can tune in and hear what your friends are listening to, and discover new tracks that way. If you like what you hear, you can share it on Twitter and Facebook.

Hot on the heels of Spotify and Facebook's new shared listening features, Rexly offers a similar experience for the iPhone and iPad. You can tune in to what other Rexly users are listening to, and if you like what you hear you can tell the world or download the song from the iTunes Music Store instantly. You can also share your own music stream with friends so they can hear what you're hearing.

Rexly is new, and while the premise of music discovery by listening in on your friends playlist is a fun idea, the service is only as good as how many of your friends are on it, so it may take time before it's really useful. Still, Rexly is free and available to download now.

Rexly | iTunes App Store via TheNextWeb
