Digging bit into Forth CPUs I found this little story: http://www.drdobbs.com/parallel/seaforth-40c18-architecture/...

I must say that the diagram does remind me a little bit of TIS-100: http://i.imgur.com/pxA3H4N.png

Admittedly its not that novel of a structure, but still it looks like fun piece of kit to play with.

Otherwise, in general I think Forth has bit similar culture/community than LISP, even if they come from very different backgrounds. Both feel smugly superior compared to common C programmers and feel slightly bitter from being unfairly pushed into niche. Both highlight the minimalism of their idol and celebrate it by creating bazillion tiny implementations.