GWT 1.6M1 and M2 released

GWT 1.6 Milestone 1 and 2 are out. The annoucement thread is available here. You will find soon a description of the new features here. The link for download.
Main new features :

• New Project Structure like the .war one
  
• Hosted Mode Enhancements (use of jetty instead of tomcat)
  
• New EventHandler System (generalized Handler system for every widgets)
  
• New Widgets (DatePicker,LazyPanel)

On another subject, you also may take a glance on the GWT blog to see that Google library for GWT has been updated.