1.) Not yet, but it is getting close!
2.) Is this after building the rig or just in the export file? I think part of the rig build process hooks everything up. In the export file, the bones are still being driven by locators so you can edit poses. The face isn’t really experimental as much as it is just not a polished user experience yet. We’re working on wrapping that up as it isn’t as intuitive as it could/should be.