• 
  It looks like this latest release includes a variety of small improvements and bug fixes.
• Minichat Web client
  An embeddable chat client for your website built using GWT and XMPP. No source is available yet, but there are instructions on how to install it on your own website.
• 
  This library includes support for the AJAX Search, Google Gadgets, Google Gears and Google Maps APIs. With this release, the developers have split each API into its own individual distribution.
• Using OpenID within GWT
  OpenID is an easy way to create a single digital identity across the internet. Aviad Ben Dov has written a nice tutorial on how to use this authentication mechanism in a GWT application.
• Test driven development for GWT UI code with asynchronous RPC
  Rob Van Maris has written a nice post on how to perform GWT UI testing using EasyMock.

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