It's quite impressive that you've got so far so quickly.

There are some similarities to my own Full Metal Jacket (http://web.onetel.com/~hibou/fmj/FMJ.html), which I'm still actively developing, but I suspect there are significant differences as well. So I have a few questions.

(1) Is the computation model dataflow, i.e. do vertices execute asynchronously, when all their inputs have values?

(2) If not, is Skov a visual equivalent of factor or some other textual language?

(3) Is it statically or dynamically typed?

(4) How is iteration done?

(5) Is there a lambda?