From Microsoft Watch: MySpace is blaming its latest site-wide outage on the California heat wave. But no one's talking about why one of the biggest sites on the Web didn't fail over when the power went out. MySpace is a key Microsoft customer, with a back-end infrastructure built on Windows, SQL Server and IIS. Whether you believe MySpace to be "mission critical" or not, still seems like someone would have thought about failover/mirroring....