Meta-comment: this is an excellently written landing page. All the comments about the explanation prose you usually see on HN when a language or library is introduced could be rewritten as "Make it more like Haste's landing page".
While on the topic of the landing page, it doesn't scale well in chrome on linux. I use two windows side by side and the navigation bar breaks around 938px width, which is just short for me.
The text itself is well written and clearly thought through though, with the right amount of detail.
code samples can really only give you a feel for the language, any more and it belongs in tutorials and API documents.