Amazon S3: Versioning Beta Design

potential to use this instead of a dropbox account? the code could be substantially easier to write.

What open source tools are you using to backup to S3 from linux? I imagine the good ones will add in support for S3 versioning.

How is this different than simply adding a version suffix to each file name?

Does it do deduplication, or do I have to pay for too much storage when a large file changes just a little each day?<p>This is why I use JungleDisk.