bigFORTH is a native code Forth for x86 processors. MINOS is a portable GUI library for X11 and Win32, written in object oriented Forth, and includes the form editor Theseus.
GatewayMU* is the result of a combination of what several of my friends and myself desire of a MUCK/MUD/MUSH/MU* client, a fully customizable integrated development environment with MUF and MPI support by default, and many wizards.