AirPortExtremeUpdate2008004.pkg

This feels to me like the first time I've had a platform specific update in Leopard. [url]http://www.apple.com/downloads/macosx/apple/application_updates/airportextremeupdate2008004.html[/url] Correct me if I'm wrong. I am not going to split my Leopard build train for PPC and X86. Think this update is universal? True, I don't have many PPC machines left to worry about but... Suppose I could build a pkg that does this: 1. copy AirPortExtremeUpdate2008004.pkg to some dir on target disk 2. create launchdaemon or loginhook that calls a script... 3. ...that is platform aware and runs installer only if on X86 4. then deletes pkg 5. and finally unloads the launch daemon / destroys the loginhook Thoughts? Anyone?