Index: src/main/java/org/codehaus/mojo/gwt/shell/CompileMojo.java
===================================================================
--- src/main/java/org/codehaus/mojo/gwt/shell/CompileMojo.java	(revision 10045)
+++ src/main/java/org/codehaus/mojo/gwt/shell/CompileMojo.java	(working copy)
@@ -76,7 +76,79 @@
      * @parameter default-value="false"
      */
     private boolean enableAssertions;
+    
+    /**
+     * Logs output in a graphical tree view.
+     * <p>
+     * Can be set from command line using '-Dgwt.treeLogger=true'.
+     *
+     * @parameter default-value="false" expression="${gwt.treeLogger}"
+     */
+    private boolean treeLogger = false;
 
+    /**
+     * EXPERIMENTAL: Disables some java.lang.Class methods (e.g. getName()).
+     * <p>
+     * Can be set from command line using '-Dgwt.disableClassMetadata=true'.
+     *
+     * @parameter default-value="false" expression="${gwt.disableClassMetadata}"
+     */
+    private boolean disableClassMetadata = false;
+    
+    /**
+     * EXPERIMENTAL: Disables run-time checking of cast operations.
+     * <p>
+     * Can be set from command line using '-Dgwt.disableCastChecking=true'.
+     *
+     * @parameter default-value="false" expression="${gwt.disableCastChecking}"
+     */
+    private boolean disableCastChecking = false;
+    
+    /**
+     * Ask GWT to create the Story of Your Compile (SOYC).
+     * <p>
+     * Can be set from command line using '-Dgwt.soyc=true'.
+     *
+     * @parameter default-value="false" expression="${gwt.soyc}"
+     */
+    private boolean soyc = false;
+    
+    /**
+     * Validate all source code, but do not compile.
+     * <p>
+     * Can be set from command line using '-Dgwt.validateOnly=true'.
+     *
+     * @parameter default-value="false" expression="${gwt.validateOnly}"
+     */
+    private boolean validateOnly = false;
+    
+    /**
+     * Enable faster, but less-optimized, compilations.
+     * <p>
+     * Can be set from command line using '-Dgwt.draftCompile=true'.
+     *
+     * @parameter default-value="false" expression="${gwt.draftCompile}"
+     */
+    private boolean draftCompile = false;
+    
+    /**
+     * The compiler work directory (must be writeable; defaults to a system temp dir).
+     * <p>
+     * Can be set from command line using '-Dgwt.workDir=path'.
+     * 
+     * @parameter default-value="${project.build.directory}/workDir" expression="${gwt.workDir}"
+     */
+    private File workDir;
+    
+    /**
+     * The directory into which extra, non-deployed files will be written.
+     * <p>
+     * Can be set from command line using '-Dgwt.extra=path'.
+     * 
+     * @parameter default-value="${project.build.directory}/extra" expression="${gwt.extra}"
+     */
+    private File extra;
+
     public void doExecute( GwtRuntime runtime )
         throws MojoExecutionException, MojoFailureException
     {
@@ -128,6 +200,31 @@
             cmd.arg( "-localWorkers" )
                .arg( String.valueOf( getLocalWorkers() ) );
         }
+        
+    	// version specific parameters
+        switch ( runtime.getVersion() )
+        {
+            case TWO_DOT_ZERO:
+                cmd.arg(soyc, "-soyc")
+                	.arg(draftCompile, "-draftCompile")
+                	.arg(validateOnly,"-validateOnly")
+                	.arg(treeLogger, "-treeLogger")
+                	// NOTE: experimental in GWT 2.0.0-SNAPSHOT
+                	.arg(disableClassMetadata, "-XdisableClassMetadata")
+                	// NOTE: experimental in GWT 2.0.0-SNAPSHOT
+                	.arg(disableCastChecking, "-XdisableCastChecking");
+            	if (!workDir.exists() && workDir.mkdirs()) {
+            		cmd.arg("-workDir")
+            			.arg(workDir.getAbsolutePath());
+            	}
+            	if (!extra.exists() && extra.mkdirs()) {
+            		cmd.arg("-extra")
+            			.arg(extra.getAbsolutePath());
+            	}
+               
+            default:
+        }        	
+
         for ( String target : modules )
         {
             if ( !compilationRequired( target, getOutputDirectory() ) )
@@ -138,6 +235,7 @@
             cmd.arg( target );
             upToDate = false;
         }
+
         if ( !upToDate )
         {
             cmd.execute();
Index: src/main/java/org/codehaus/mojo/gwt/GwtVersion.java
===================================================================
--- src/main/java/org/codehaus/mojo/gwt/GwtVersion.java	(revision 10045)
+++ src/main/java/org/codehaus/mojo/gwt/GwtVersion.java	(working copy)
@@ -33,6 +33,9 @@
     , ONE_DOT_SIX( true, "com.google.gwt.dev.HostedMode", "com.google.gwt.dev.Compiler", EmbeddedServer.JETTY, 
                    true, true, "-war" )
 
+    , TWO_DOT_ZERO( true, "com.google.gwt.dev.HostedMode", "com.google.gwt.dev.Compiler", EmbeddedServer.JETTY, 
+              true, true, "-war" )
+                   
     , FUTURE( true, "com.google.gwt.dev.HostedMode", "com.google.gwt.dev.Compiler", EmbeddedServer.JETTY, 
               true, true, "-war" );
 
@@ -51,6 +54,10 @@
                 {
                     return ONE_DOT_SIX;
                 }
+                if ( version.startsWith( "2.0" ) )
+                {
+                    return TWO_DOT_ZERO;
+                }
                 return FUTURE;
             }