Heh, thanks to the hard work of the target developers, 3.0.1 is now available:

http://www.antlr.org/download.html

Java, C, Python, C# targets are available; others coming.

Here are the changes:

http://www.antlr.org/doc/README.txt

Essentially, this is a bug fix release with a number of improvements to the debugging protocol that communicates with ANTLRWorks. Oh, and I added:

org/antlr/runtime/tree/TreeWizard.java

Here are the target pages:

Code Generation Targets

I and madly at work building 3.1, which will include grammar imports, tree construction for tree grammars and heterogeneous tree nodes.

Ter
PS I believe ANTLRWorks 1.0.2 as this latest version of antlr in there.