Yes I understood that. But right now if you want to use docker.io on your OSX dev box you have to run linux inside a VM to be able to leverage the docker.io features (building and testing apps in lightweight containers) for later deployment on the target cloud infrastructure.

If you have OSv working both under virtualbox or vmware on your OSX dev box and under KVM or EC2 HVM on your cloud production environment, then it might be possible to have a docker.io features directly under your OSX dev box.