Interesante texto de Rory McGreal en el que explica cómo "[...] for mLearning applications, OER are essential. This need for OER is driven by the copyright controllers applying “technological protection measures” (TPM), meaning restrictive licensing as well as geographical and other restrictions"

https://oerknowledgecloud.org/sites/oerknowledgecloud.org/files/pub_Mobile%20Learning_web_CH4.pdf