Yeah! GWT 1.6 is in release candidate stage…
Bruce Johnson:
Good news! Google Web Toolkit 1.6 RC is ready for you to download and try out: (…) We expect this to be a short RC cycle, so a more comprehensive blog post with an overview of the features in GWT 1.6 should be just around the corner.
Announcing GWT 1.6 Release Candidate – Google Web Toolkit | Google Groups.