Right now the domain that can be used is basically the domain of the whole DS instance.
The user should be able to connect a domain they control in their DS account which would be usable (possiby as is or with subdomain) for serving an appspace
admin should be able to offer additional domains for use by users (via subdomain) or prevent use of main instance domain. (all this maybe on a per-user basis)
Right now the domain that can be used is basically the domain of the whole DS instance.
Not sure what this entails overall?