Amazon Web Services recently announced the release of Elastic Block Store Snapshot Copy. This tool enables users to copy EBS snapshots for use in multiple AWS regions. Users will only be charged for data transfered to copy the snapshot. The official AWS website offers further details on how to get started with EBS Snapshot Copy via the AWS management console. From the website:
EBS Snapshot Copy is simple to use. In the AWS Management Console, you can select the snapshot to be copied, set the destination region, and start the copy. This feature can also be accessed via an EC2 Command Line Interface or an EC2 API as described in the EBS Snapshot Copy page. The copied snapshot behaves the same as other snapshots in the destination region: it can be used to create new EBS volumes which can then be attached to an EC2 instance in the destination region.