UPDATE: watch a recording of Joe's talk on Confreaks.com
Are you going to RubyConf 2012 in Denver, CO? If you are, make sure you come and see the Librato session. On Thursday, November 1st at 2:30pm Joe will be talking about the Ruby Monitoring State of the Union were you will hear about current state-of-the-art projects available for runtime monitoring of production Ruby code.
If you want to discuss all things Ruby instrumentation, visualization, analysis, etc. look for Joe and Dan in the hallways - they will most probably be wearing their "I <3 Graphs" shirts. See you in Denver!