Adobe CS4 tools in public beta on Labs just released public beta versions of the upcoming Dreamweaver, Fireworks & Soundbooth tools.

Top new Dreamweaver features:
  • Live View
  • Related Files
  • Code Navigator
  • CSS best practices
  • Code hinting for Ajax and JavaScript frameworks
  • HTML data sets
  • Photoshop Smart Objects
  • Subversion integration
  • Adobe® AIR™ authoring support
  • New user interface

Top new Fireworks features:
  • New user interface
  • CSS and Images Export
  • PDF export
  • Live Style improvements
  • Adobe type engine
  • AIR authoring

Top new Soundbooth features:
  • Arranging audio files on multiple tracks
  • Making quick edits and applying fades
  • Matching volume levels with a single command
  • Removing unwanted noises and background sounds
  • Adjusting tempo and pitch
  • Recording and polishing voice-overs
  • Adding effects and filters
  • Previewing MP3 compression quality
  • Easily creating customized music — without musical expertise

More info and downloads at the links: