Hello, I read two interesting articles about this. It says that IBM does not want to compete in the market of the Open Source, but to handle it. Well I want to share with you some links
Here brief goes:
WAS CE (WebSphere Application Server
Community Edition) is built on the Apache Software
Foundation's Geronimo open-source application server.
WAS CE also includes IBM's Cloudscape database, which
is based on the open-source Apache Derby Project.
Links:
IBM's New WebSphere Challenges JBoss
IBM Offers WebSphere for Geronimo
Albert 