Yesterday I posted that, per Unlocking IP, that iTunes U was only accepting content on the understanding that the university itself didn’t have the right to re-licence. Nicholas did what I didn’t though, and went to the source to find that the iTunes U licensing overview is quite a gentle friendly document instructing universities to check that their copyright is in order before distributing it and suggesting Creative Commons and GFDL as potentially appropriate licences for academic work. Nicholas also observes that universities are retaining their copyright, eg SMU.
So unless iTunes U USA and iTunes U AU are signicantly different beasts, it looks like all this is an object lesson (for me) in not citing without sighting (not trusting to a summary of anything without seeing the original documents). But good news overall, and my apologies for stupidly perpetrating confusion.