Works4me ;)
Egyébként about-ból egy rövid idézet:
Slowly, ideas from Plan 9 are being adopted by other systems. Plan 9 was the first operating system with complete support for the UTF-8 Unicode character set encoding. The dump file system has been mimicked in Athena’s OldFiles directories or Network Appliance’s .snapshot directories. The flexible rfork(2) system call, the basis of lightweight threads, was adopted as is by the various BSD derivatives and reincarnated on Linux as clone(2). The simple file protocol 9P has been implemented on early versions of FreeBSD and current versions of Linux.