When I clicked on the link, I almost clicked off before seeing what language this was even targeted at.
The first point is "Develop in a single, object-oriented language." That's just buzz.
Line 2: "Stop worrying about HTML, JavaScript, AJAX, and Comet." More buzz. Everybody says I can stop worrying about these things, but I still don't believe you. Is it web based?
Line 3: "Deploy seamlessly across all browsers and operating systems." Great, so it is web based and does exactly what every other web page does. Still not sold.
Line 4: "Create lightweight, on-demand websites and WebApps" More buzz, I don't care yet.
Line 5: "Boost your productivity. Develop faster, with fewer resources." Everybody says this, still not sold, ready to leave the site.
Line 6: "Enjoy many other exciting features." Great. I'm all the way through the bullet list and I still don't have any real idea what this project does.
Finally, as I scan the small print, I see that it is PHP based and is optimized for web apps.
This seems like a good idea, but the site is not great for discovering that.
One of my favorite new project sites is for vows (http://vowsjs.org/). It has one sentence declaring the goal, two sentences with output showing typical usage, and a brief paragraph explaining the purpose. All of it looks good too, and the rest of the documentation is very complete. I'd take a page out of their book if I were you.