The calcurriculum wiki has some great ideas collected on it. It will be absolutely awesome by the time everyone finishes this SLL2.0 adventure and contributes ideas. It will surely be a valuable resource for us all to find ideas of how to use the new tools we are discovering this summer.
I posted an idea on the Wiki page about reviewing the projects that have been worked on in the past at my school with various teachers and their classes, with an eye to creating the projects next time with wikis. I am going to try this myself and be ready with some suggestions and training for the teachers in my school in the fall.