The promise that Airphones offers is really exciting. I would love to cook in my kitchen while having my iPod touch plugged into my Mac audio stream playing music from my massive iTunes library. In fact I could also connect my stereo speakers to my iPod Touch or iPhone and listen to music in all its glory!There is no way of selecting the Airphones unit you want to stream to like either my iPhone or my iPod Touch or streaming it simulatenously to both devices.
Then again, this is the first version of Airphones and I'm sure that the developers are working away to add more to it. Overall the Airphones app is a great idea and worth watching out for the next versions.
The most recent version of Airphones 2.0 now supports complete Stereo playback of music and also has been drastically improved to provide better audio quality. There is also a lite version available on the App store for free which you can try out before buying the paid version.