Today we've released another new beta to Adobe Labs, Muse. What is Muse? To quote labs:
Muse (codename) enables designers to create websites as easily as creating a layout for print. Design and publish original HTML pages using the latest web standards, and without writing code.
Now - I know that is not something that will probably interest most of my readers. I definitely have a more developer-heavy crowd then designer. However, I do think you should check out Muse anyway. Why? It's an AIR-based application and easily one of the most impressive ones I've ever seen. The site tree, for example, works really well.
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The design aspect feels pretty powerful too. You can drag and drop widgets in that tie into data (for example, a menu that links to your site plan) or your file system. The output HTML is kinda clean too.
For more information, and a FAQ on pricing, check out the site: http://muse.adobe.com. As I said, I don't expect many of my readers to need this tool, but I strongly recommend downloading and playing with it. It is a great example of what's possible with Adobe AIR.