For us, the cross-account replication ability here is very welcome as well as the preserving of metadata. Prior the PUT COPY would not allow you to retain proper version history(times). Now we can backup everything that hits an S3 bucket into a separate backup-account+region automatically :)

Now. If they would just allow us to push RDS snapshots into different accounts+regions.

Unfortunately this does not allow moving the data into a separate acct :|

Very cool. We were about to need to figure out how to back up to a secondary account and were going to probably have to do some crazy stuff with rclone. This will just mean an initial sync of the current data any the new items will be automagically replicated.

Very cool, although I feel like this should have been implemented a long time ago. I mean think about it: do you really want your users to pull data across different regions? Amazon will probably know how to do this replication safely, securely and cheaply.

This could be handy for package distribution, is there mention of the propagation delay?

This looks like it could be really nice for duplicating backups into a separate bucket with more severely locked-down access, to alleviate concerns about things like a disgruntled employee blowing away a backups bucket.

Very nice... I think this is a feature that's had some increased demand, since it's been in the box for Azure Storage for some time... It's really nice to see more and more feature parity with cloud providers.