Remote Nmap is a python client/server package which allows many clients to connect to a centralized nmap server to do their port scanning. This could be useful for security companies who want to have all thier scans come from a dedicated machine.
You can download it from the following link: https://packetstormsecurity.com/files/download/22963/rnmap_0.4-beta.tar.gz
Source: https://packetstormsecurity.com/files/22963/RNmap-0.4-Beta.html