So far I've figured out that s3cmd.rb is compatible w/ the devpay headers with the exception of the 'createbucket' command which doesn't seem to allow you to pass in headers.

s3sync.rb doesn't seem to allow you to pass in headers. Would it be possible to get his added somehow such that each s3 command appended the requested headers?

James

Is S3Sync compatible w/ DevPay? Does S3Sync rely on REST calls?

Devpay says: Amazon S3 requests that use DevPay must be REST requests; SOAP requests
and pre-signed query URLs are not supported for DevPay.

I am assuming that I would just add the x-amz-security-token headers via the optional headers commands.