Kingston has a successor language, called Nonpareil, which seems to have been in development for quite some time: http://sydney.edu.au/engineering/it/~jeff/nonpareil.

I love (La)TeX, but I'd also love to see viable alternatives in place. However, I've never heard a success story (for example, "I wrote a book in it and it was pleasant"—or even "… a paper … painless"!). In fact, this is the first story I've heard of anyone (other than Kingston & co. himself) even seriously trying it.

Is there a Lout / Nonpareil showcase out there somewhere?