Aptana: advanced IDE for Web 2.0

Aptana is a robust, JavaScript-focused IDE for building dynamic web applications. Highlights include the following features:
* Code Assist on JavaScript, HTML, and CSS languages, including your own JavaScript functions
* Outliner that gives a snapshot view of your JavaScript, HTML, and CSS code structure
* Error and warning notification for your code
* Support for Aptana UI customization and extensions
* Cross-platform support
* Free and open source. (Source available soon)
Aptana seems to be a very powerfull IDE for Javascript (finally!!!).
The biggest features is the Integrated documentation, merged with a “suggestions-system” that indicate standard and non standard tags and attributes (indicating the browser compatibility with icons). A screenshot follows:

I suggest to take a look to its screencasts.
Aptana its available standalone (running on Win, MacOSX, Linux) and as Eclipse plugin (it’s developed over the Eclipse SDK).
















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