I have a VS Premium MSDN subscription.
I have access to Azure ACS, VM, web sites etc. no problem.
As per Windows Azure Active Directory Graph Prerequisites, I click on the link:
"You can get a free, trial subscription to Windows Azure AD from the Windows Azure AD Preview Sign-up page"
When I access that page I get:
"Sorry! We can't process your request right now.
Sorry, we cannot sign you in with the credentials you provided. You will need to sign in with an organizational account to continue"
Any ideas?