This past Friday the Web 2.0 Feature Pack 220.127.116.11 version was made available. You can find it here:
Web 2.0 Feature Pack start page
IBM's Fix Central
The 18.104.22.168 feature pack contains Dojo 1.3.1 and includes over a 1000 bug fixes over version Dojo 1.1, wider browser support, and performance enhancements. On the server side, Ajax proxy, JSON4J, RPCAdapter, and Web messaging have all seen improvements.You can upgrade from 1.0 or 22.214.171.124 versions of the feature pack without adversely affecting your existing installation. Of course, if you want to pick up the latest changes into your applications, you'll need to rebuild.
Check it out.Kevin Haverlock