Examples of this could be:
Case studies of Moodle use, highlighting how Moodle brought together people from diverse backgrounds to make learning happen.
Presentations of themes and plug-ins that enable users with diverse needs to interact through Moodle to advance learning.
Presentations of strategies for using Moodle to ensure that everyone in a learner group can contribute to make learning more efficient and fun.
Perhaps you are using Moodle with a very large group of people or you have run a MOOC where you have used novel concepts to ensure that as many learner voices as possible matter, and are contributing to overall learning success.
The timings of the iMoot15 are from 5am Thursday 28th May 2015 to 9am Monday 1st June 2015 (GMT +8)
For more details check out the official iMoot15 website here: http://2015.imoot.org/