In an effort to build the most powerful HTPC system that you can have you have to consider not just the technologies which are useful to yourself, but others in the household. More often than not my explanations on DLNA, UPNP, SMB or AFS go down like the titanic and no matter what measures I put in place it never seems simple enough in reality to demonstrate. So what am I rambling on about? Update 1: I wrote this article some time ago now, but much has changed since then. Firstly OpenElec was released as final and has been updated a few times since then. I'm now on 1.0.2 for instance. The guide was written for RC5, however the instructions should still be applicable. Update 2: If you are struggling to get this working or it just won't work, then don't worry. The latest version of XBMC Eden (currently RC2) has Airplay and AirTunes support built in! http://xbmc.org/download/