This seems quite similar to SparkleShare: http://sparkleshare.org/ http://sparkleshare.org/ Edit: Oops, SparkleShare is mentioned on the page. Looks like this

This seems quite similar to SparkleShare: http://sparkleshare.org/ http://sparkleshare.org/ Edit: Oops, SparkleShare is mentioned on the page. Looks like this will work better with larger files. He does mention that SparkleShare is a GUI and not 'just a folder', although in my experience it is 'just a folder', like Dropbox.