I'd totally use this if it added features that didn't S3 didn't support - which shouldn't be aproblem since S3 isn't a standard anyway. Two major features that

I'd totally use this if it added features that didn't S3 didn't support - which shouldn't be aproblem since S3 isn't a standard anyway. Two major features that come to mind: Batch operations and querying objects by metadata. Right now if I want to rename 100 keys to 100 other keys without making 100 requests I'm kind of out of luck - which makes S3 useless for having a data store back-end for say, a document management solution, unless you flatten the file system (which is what I end up doing)