We pushed an update. You can now put a comma delimited set of domains in the dashboard that you can allow for a single app (under OAuth). We’ll update the documentation on this new feature as well.
Nope, not yet. It will be soon and I’ll update this thread then.
Currently to have a single LaunchKey app on multiple subdomains you could handle it by making your OAuth domain in the LaunchKey dashboard *.yourdomain.tld which opens it up to accept any subdomain on yourdomain.tld.
As for multiple domains, we’ll have to mull over that for a bit.
As it is right now, one of the verification mechanisms is making sure the domain matches up appropriately as specified in the LaunchKey dashboard. So having multiple domains for a single config may not work. Having the admin login for multiple sites hosted at a single domain could probably be made to work.
I’ll try to get a better answer for you.