Microsoft to allow VMs migration with one Windows license?

NetworkWorld is reporting an interesting news, still unconfirmed: on August 19 Microsoft will reduce the license demand to perform virtual machines migration.

At today any customer that wants to migrate a Windows guest operating system from one physical host to another (for example through the VMware VMotion technology) has to have two licenses of the operating system, one for each location.

The current policy in fact says that a customer needs to wait 90 days before migrating its licensing from one physical server to another.

The article sounds unreasonable and it seems to have the only effect to make more expensive the advent of a truly dynamic data center.
Now, after customers complains, Microsoft maybe will replace it with a license that is related to the guest OS instead of the host.