Scott Wilso at Uni of Bolton has created some Google Wave widget for Moodle.
"I've created a Moodle course that uses some widgets, all of which make use of the Wave Gadget API. Some of these are Google examples (converted to W3C format) and some are ones we've created."
This course introduces the main concepts and technologies behind Responsive Open Learning Environments (ROLE). The ROLE project provides tools and services that enable learners to build their own technology-enhanced learning environment based on their needs and preferences.