Fresh from the Adobe Labs comes betas for Adobe Dreamweaver CS4 and Adobe Fireworks CS4. It should be noted that if you’ve been using CS3, there is a new unified interface that’ll be appearing in CS4 that may take some getting used to.
Also, if you tested the Photoshop CS3 beta when it was released, I can’t stress enough that you should not install this software on a machine that is mission critical for your business. This is beta software. It may have problems. It may cause difficulties if you decide to upgrade to CS4 when it’s released.