Nectil is the rising generation of ASP entirely compatible Mac/Windows/Linux build with flash/php/mysql, which offers an homogeneous environment and essentials applications for your daily management: CMS, contacts, groups, files, mass-mailing, documents, security, etc.
http://www.nectil.com

Nectil Publishing and Webstudio Suite, the lead applications of Nectil, are professional CMS which enables you to analyze, configure, develop, manage, and publish your multilingual contents in HTML and Flash, but also in PDF, InDesign©, Java, etc. Configure your Website and the management environnement in minutes!

For those who create rich flash app or website, we create a full-featured CMS to create and manage multilingual, opened-structured content in one hour!

Integrate the content in your project with a easy-but-powerfull XML query language: NQL. Don't create query pages anymore, build your XML queries in flash and receive a well-structured and designed XML back.

Try a light version of Webstudio:
http://www.nectil.com/Public/trialSuscribe.php?ID=882

The software is in english & french, but the website and doc are only in french. Translation will come soon (feb.).

The Nectil Team design hundreds of optimized components to offer a suitable and usable work environement. For example, we are very proud of our two top-feature objects:

> List component: a list object that can manage several thousands (!) of items which can be scrolled as fast as your native OS lists! List can be declined to a Tree component and more: dynamically add columns, move them, resize them, etc.

> CSS Editor: a flash-based real CSS editor. Write your CSS, drop them in the Nectil CSS library, edit your styled text within Nectil OS, and publish it directly on your website! Great? Yes, but not enough: Our editor is Pre-press friendly: manage your Paragraph and Character styles, and export any content (even a tree-structure) to InDesign!

Nectil is opensource but not freeware.