A paper written by a former Apple intern, and now Core OS engineer, has detailed Appleís attempts at getting a full version of Mac OS X to boot on an ARM processor, reports iMore. Initially subject to an embargo, but just recently published, the paper was written as part of a Bachelor degree thesis in 2010 by Tristan Schapp. It details the technical aspects and challenges associated with getting Darwin, which underpins OS X, to work effectively on the ARM architecture.