JetBrains are in town and are going to give a talk and demo of RubyMine (version 2.0 just released). RubyMine is a Ruby focussed version of the IntelliJ IDE.
There will also be the chance to discuss some of JetBrain's other products like the new Issue Tracker or the Open Sourced version of IntelliJ.
Official Website: http://londongeeknights.wetpaint.com/page/RubyMine
Added by rrees on November 27, 2009