One small wish that I'd make for 1.2.5 would be potentially to include the location of s3sync.rb in the places that s3sync uses to look for the config file.
Why not just ln -s it to one of the search paths then? I won't make the config search too promiscuous because I can see some kind of vuln where the script is fooled to look at the wrong config, and sends your secret data to someone else. This wasn't an issue prior to 1.2.4 since the script only ran correctly when you were standing in the s3sync dir. Now that it can run "from anywhere" there are extra considerations to have!
