Cool…Here is the latest on the AWS services. The Elastic Block Store.

“You can snapshot a volume to Amazon S3 with ease, and then, if needed, create new volumes (of the same or different sizes) using the snapshot as a base. Of course, if you create a new volume with a size that doesn’t match the size of the volume where you took snapshot, you will have to resize the new file system. When you create a new volume based on an S3 snapshot, the data is loaded lazily; there’s no need to wait for the snapshot to load.”

Running MySQL on Amazon EC2 with Elastic Block Store by Eric Hammond.

To check out this feature easily, I use ElasticFox addon. I need to upgrade it first at http://s3.amazonaws.com/ec2-downloads/elasticfox.xpi

It’s seems a little bit easier to implement some db and ec2 backups using this feature.
Kudos to Amazon guys.