Managed Service Accounts not supported by SQL Server

I have been setting up a new Active Directory Domain Services running in Windows Server 2008 R2 functional level. According to the documentation What's New in Services Accounts in Windows Server 2008 and Windows 7: "The managed service account is designed to provide crucial applications such as SQL Server and IIS with the isolation of their own domain accounts, while eliminating the need for an administrator to manually administer the service principal name (SPN) and credentials for these accounts." So I create an account to run the SQL services and install SQL server. However, when I try to pick the service account, my SQL user will not show up in the picker at all. Searching around some more, I come across the Managed Service Accounts Frequently Asked Questions (FAQ). It states: "The use of managed service accounts with Microsoft SQL Server is not supported." Argh!