In reference to my previous question, wherein it appears the best way of handling multiple instances of WordPress will be to use MU (even across multiple domains, etc) - I'm looking for a way to migrate multiple individual WordPress instances to one wp-mu installation.
Looking through the WPMU Codex, I don't see anything - perhaps I've just missed it, though.
Has anyone on serverfault done such a migration, and, if so, could you shed some light on how to approach it?
I'm running on CentOS 4 with MySQL 5.
Wordpress (single) and MU are merging soon, so I suspect it will be easy to import individual installs into MU: WordPress Development Updates.