Pedagogical and other types of metadata are important in the implementation of learning systems for use by mobile devices. Metadata is key to the use of learning objects. Learning objects represent a means of rendering learning content interoperable on a wide range of devices in different formats using XML for usability on small and large screens. To ensure discoverability and repository interoperability, metadata is essential. CanCore is a metadata profile for implementing the IEEE LOM, thus advancing the use of learning objects. With enhancements to the profile and to the LOM, providing for location and time, as well as other contextual information, mobile devices can be used effectively as an extension of the global data infrastructure.