We had a productive time since last tab sweep and released a third developer preview of RHQ, as well as RHQ 4.0.0 Beta 1. Please give the beta a try and report issues, as well as file feature requests.
Ian Springer has answered the forums post about "JBoss AS 5.1 and RHQ"
Speaking of Bundles, John Sanda has created a bundle receipt for deploying JBossAS.
Lukáš Krejčí has written about running CLI scripts as alert notifications. This feature made it into RHQ 4 beta 1.
Jay Shaughnessy has written a hint about regular expression evaluation in GWT.
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We had some discussions about a new Auditing subsystem (this would be a great topic to start RHQ hacking, as this can be (mostly) done in great isolation to the existing code base.
Another discussion went around the new Summary/Activity pages for groups and about displaying recent package history and bundle deployments on those.