The description of Aardappel (of which I know nothing) caught my eye:
Aardappel is a new language, which computes by concurrently reducing trees (using a form of tree-rewriting) which sit together in tree-spaces (bags) and communicate amongst eachother (exchanging parts of themselves, in Linda-like fashion), and in general having a jolly good time alltogether. The language is 100% graphical. Oh yes, the language is linear as well.
Any language that works by having a jolly good time alltogether has to be worth checking out right?