Xen-based Amazon EC is getting block storage

Good news:  The  probably well-known (though still in beta), Xen-based service EC2 from Amazon is getting a new feature, that some(at least myself di) might have missed since a while: Elastic Block Storage! While until know, changing data on the EC2 system could only be stored in a S3 webservice or any database running on your traditional provider’s host, they now offer a service with “normal” block device storage.
While I’ve been hesitating to spend time getting into the technology and usage of this service, it seems to become quite interesting now!
There is even a clone already, that offer similar functionality (also Xen-based, and even said to be  API compatible with EC2): Eucalyptus.