Hi,
 surfing on the web I have found this new language:
http://factorcode.org/
It is a stack-based language with a very flexible parser.

It borrows idea from Self and it seems very promising to me.
And it has the concept of image, ispector, debugger and so on...
give it a try!

-- 
Software Architect
http://www.objectsroot.com/
Software is nothing