My plan is to begin by simply embedding Mindmeld into Tiki as a module. This will allow the Tiki folks to start putting solutions into Mindmeld for user and even developer support.
Timeline: Should be finished by October 24
After I've embedded, I'll start looking at a database-level integration, so Mindmeld will be able to learn content directly from wikis, forums, articles, and other Tiki modules.
Timeline: End of the year.