1. There's now an Eclipse update site for easy installation. The address is posted on the google code site.
2. The plugin is actually usable, although a bit limited. It only creates one enum type, even though it has the capability to create and cluster enum constants together to create multiple enum types. Nevertheless, as long as the develop manually selects the enum constants to complete an enum type, the refactoring basically goes as planned.
I encourage you all to download the latest version and give it a whirl. Report any bugs/enhancements to the google code issues page. Thanks!
Raffi