Fabric is “designed to upload files to, and run shell commands on, a number of servers in parallel or serially.”
img http://img.skitch.com/20090206-mu1i9qjynj9r6fu467cwbsxdwq.png http://www.nongnu.org/fab
It’s primarily for deploying changes to web apps or services across multiple servers. An official mirror is hosted on GitHub at http://github.com/karmazilla/fabric.
While still alpha level, it looks promising.