This is domain registration, not Google Apps associated with a domain. Google is moving into GoDaddy/Namecheap/Gandi space here. Once this opens up I imagine

This is domain registration, not Google Apps associated with a domain. Google is moving into GoDaddy/Namecheap/Gandi space here. Once this opens up I imagine you can just transfer your domain from your current registrar and nothing will change in your Google Apps account.