CrimsonHex is a repository of specialised Learning Objects and is still in development, but you can try it at http://mooshak.dcc.fc.up.pt:8080/crimsonHex/.
It implements the IMS DRI specification and we extend it to support other functions (e.g. report/store) and a new web service flavour (e.g. REST). At this moment, we are implementing a web based app to allow the management of the repository, but we are willing to integrate it in other eLearning system types (e.g. LMS's like Moodle). So i think that makes sense that the new version of Moodle supports DRI and we are interested in collaborate in this support.
Support for IMS DRI Specification
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