I always love learning about new programming languages... One of the problems with lists like these, though, is that they are necessarily limited. It's not feas

I always love learning about new programming languages... One of the problems with lists like these, though, is that they are necessarily limited. It's not feasible to add everybody's pet/toy/experimental language. Question is, at what point does a new language (implementation) stop being "trivial"? For example, recently I discovered the V programming language [http://code.google.com/p/v-language/ http://code.google.com/p/v-language/]. Should this language be in the list? The implementation is nowhere near stable nor mature; on the other hand, it has some interesting ideas to make concatenative languages more palatable, which might make it non-trivial.