Apple has announced that enhancements to iTunes U allow an instructor considerable flexibility in shaping content for his/her class.
The new in-app updates to iTunes U give teachers full course creation capabilities on iPad, with the ability to directly add rich content and learning materials from iWork®, iBooks® Author or any of the over 75,000 educational apps available for iPad.
My opinion is that Apple will continue to trail companies such as Amazon and Google in providing content to the broad education market until Apple is willing to offer content cross platform. The iPad is very popular, but cross-platform is the reality in schools using a BYOD, android, or Windows platform. For whatever educators want, this seems an industry struggle based on whether companies benefit most from software or hardware adoption.
