How to stream from iTunes(on iMac) to iphone/ipad on same network, at the same time? I can use the Remote app to control what is currently playing on the iMac, but is there a way to stream the audio so that it is playing out through the iMac AND the ipad/phone in parallel?
Rogue Amoeba's Airfoil can stream to multiple computers and iOS devices (using a free iOS app). It can stream from iTunes, or from many other applications.