I've just finished work on the RC-2 bundles of Apache.NMS and Apache.NMS.ActiveMQ. Release candidate 2 resolves several issues found since the RC-1 version was posted. The bundles are available here
This release adds the Inactivity Monitor to NMS.ActiveMQ which is useful in detecting broken connections quickly which allows the failover transport to recover your connection faster. The inactivity monitor is disabled by default in this RC while we continue to test it, you can enable it by add "transport.useInactivityMonitor=true" to your connection URI. Also several bugs related to transactions and message redelivery were addressed in this release.