I ran a bulk upload script and it looks like it failed on every single jpeg and gif file. Error follows:

Problem: UnicodeEncodeError: 'ascii' codec can't encode character u'\u201d' in position 35: ordinal not in range(128) S3cmd: 1.5.0-alpha3 Traceback (most recent call last): File "/usr/local/bin/s3cmd", line 2094, in main() File "/usr/local/bin/s3cmd", line 2034, in main cmd_func(args) File "/usr/local/bin/s3cmd", line 269, in cmd_object_put destination_base = str(destination_base_uri) UnicodeEncodeError: 'ascii' codec can't encode character u'\u201d' in position 35: ordinal not in range(128) 

Nice job otherwise, this tool rocks