Newspeak » The Newspeak Programming Language. I think I've mentioned this before, but I'm not really linking it because of the language itself, but because of the IDE presented there - it runs within Squeak, but is largely autonomous and looks very interesting to me. From the first glance, I would say that someone is very inspired by the old Apple Dylan - the hierarchical representation of classes and methods, the linking and the general presentation of the source as a kind of hyperlinked database looks very good.