Jason,

What you looked at was "Snapshot Backups", not "Database Snapshots."

I think these are the ones he was talking about: http://msdn.microsoft.com/en-us/library/ms189940.aspx (Native standard features that don't require third party stuff.)

Interesting question, with the reference to 2008 R2 I thought maybe something changed and backups would be allowed, but I was positive that you couldn't restore a snapshot, as they are read-only.