Hey Guillermo -
The SOA tooling is alive and well. It is now captured under the JBoss Tools Integration Stack (JBTIS). It's one-stop shopping for all of your eclipse JBoss tooling needs - you'll find jBPM in there. The best place to start is:
http://www.jboss.org/tools/download
Where you'll find links to the latest Juno and Kepler update sites:
http://download.jboss.org/jbosstools/updates/integration/juno/integration-stack/aggregate/4.0.1/
http://download.jboss.org/jbosstools/updates/integration/kepler/integration-stack/aggregate/4.1.0/
Give it a try and let me know what you think.
--Paul L