This used to be a deal breaker for many folks. Combine this with the root object support and you can really host entire production static sites on CloudFront now.
This would be great with a CMS like MovableType that outputs static files. Instead of writing to a local file system, I would want to write to an S3 bucket and invalidate the changed files.
We have been asking AWS for this feature for many months now. CloudFront's minimum TTL of 1hr is not quick enough when you've got a problem with a cached file on a high-traffic site.
