yes it has been released open-source
but, what I see is a dirty script (rocketfuel-setup) only suited for Ubuntu, which, by the way, clutters and craps the running config:
it installs apache2 even if you have another web server installed (maybe Launchpad uses mod_python), it craps /etc/hosts file, ...
I am really happy Launchpad is released, I wanted to test and maybe deploy it here, at my job. But know what ? no ubuntu servers here, Debian or RHEL or Gentoo, and no way I'd crap my Debian servers =)
Guess some other distro-specific HOWTO's are on-topic :)