Should be compatible with Linux, Gnome, KDE, Debian, x-windows, x11, XFree86 and others.
UNIX, BSD, NeXTstep, Sun Solaris, Minix, and GP2X have their own platforms. Mac OS X is in the Mac platform.
For now, some completely unrelated platforms are here too. Such as Pandora, RISC OS, GCOS , OpenVMS, QNX, and SkyOS.