If you read this article http://www.infoq.com/news/2011/02/muir_seam3 you will see SEAM has a problem working with JSF 2.0.
In March 2011 SEAM 3 should be released (see https://issues.jboss.org/browse/SEAM?selectedTab=com.atlassian.jira.plugin.system.project%3Aroadmap-panel) that works with JSF 2.0, so too Richfaces 4.0 should be released in March 2011 see http://in.relation.to/Bloggers/Jay
Will Intellij be ready to offer these technologies to its community by the end of March 2011?
A lot of developer teams are waiting for Seam 3 and Richfaces 4 to move to JSF 2.0.
Please respond as we are currently in the month trial of using IntelliJ. SEAM 3, Richfaces 4 and JSF 2.x are our technology path.
Before we purchase IntelliJ, we need to know how responsive IntelliJ will be to changes in the Java landscape? And are you releasing a version that does support SEAM 3, Richfaces 4 and JSF 2?