Transmuter Programming Language (via PLNews):
The Transmuter Programming Language, or Trans for short, is a new dynamic programming language that has been under careful design and development for several years, and is currently in an initial testing phase. Trans is a biologically inspired language, providing a framework for experimenting with naturally evolving systems of objects over the net, and for exploring new ideas about recombinant software, code morphing, and evolutionary programming in general. The Trans model is an ambitious attempt to fuse modern programming language paradigms with novel evolutionary programming techniques. It is a modern object-oriented dynamic language with a built-in capacity for evolutionary transformation.
The code looks clean, and the source code to Trans is public domain (that's real freedom in software). Plus, it's got a prototype-OO system, and I love prototype OO. I can't comment on the "evolutionary" features as yet, but the threading system looks super easy (though it's not yet documented enough to use).
You know, I just don't know how any (late-bound) OOP language can exist without prototype inheritance.
It's the raddest thing since ... the beginning of OOP.