A Freshmeat announcement today indicates that MARIE v0.3 has been released. MARIE is the Mobile and Autonomous Robotics Integration Environment. It's intended for rapid prototyping of software for robotics applications. The project brings together existing components into a single integrated package. Among the software included is FlowDesigner, RobotFlow, Player, Stage, Gazebo, CARMEN, ACE, ARIA, Libxml2, wxWidgets, and the Expression Toolkit. All of the componets are Free Software licensed under the GNU GPL. For a more extensive description of what MARIE is and what it's good for, there is a detailed description of the project available. See also our story from last year on MARIE.