AtheOS - free alternate operating system

AtheOS is a free desktop operating system under the GPL license. AtheOS currently run on Intel, AMD and other compatible processors and support the Intel Multi Processor architecture. I have seen quite a few anouncements of "promising" OSes with "great potential" during the development of AtheOS. The problem is that when I follow the links I normally find a description of the concept, a floppy-bootloader written in assembly, and not much else. AtheOS is a bit more mature, and is already running quite a lot of software. This server for example is running AtheOS. The HTTP server is a AtheOS port of Apache, and most of the content is generated by the AtheOS port of PHP3 and perl.The native AtheOS file system is 64-bit and journaled.