Adobe DreamWeaver CS4 Beta

Adobe Systems Inc, the maker of Photoshop and Acrobat software, started public trials of its next-generation design software on Tuesday.
Registered owners of Creative Suite 3, however, will be allowed to use these betas until the release of CS4, which currently has no release date. However, unless Adobe has some kind of registration system built into those betas, they may need to be installed on production systems alongside CS3.
The beta software is available for free download.

Beta programs are near-final versions of software that its makers allow users to try out in a bid to discover bugs before the products go on sale. Some software makers conduct their betas publicly while others do so in secret, requiring users to sign nondisclosure agreements.

Adobe has yet to start public trials of the CS4 versions of other programs in the CS4 suite, which includes Photoshop and Illustrator.
Adobe's popular Web design and development tool Dreamweaver received a couple of noteworthy updates, including a Related Files toolbar, a Code Navigator, and a Live View Mode. The related files toolbar provides instant access to files used within a page, whether XML, JavaScript docs, or HTML; and the code navigator function allows code updates to be performed in several places with a single entry. Live View Mode is based upon the open source Webkit browser engine which also powers Safari. With this tool, a live preview of projects can be viewed within Dreamweaver.