In case anyone is interested in contributing to bullet debugging work, a recommended starting world configuration is the gazebo/gazebo-svn/worlds/simpleshapes.world that gets pulled into the gazebo package during build.
Thanks,
John

On Mon, Mar 15, 2010 at 7:01 PM, John Hsu <johnhsu@willowgarage.com> wrote:
Hello,

simulator_gazebo-1.1.0  has been released into latest.  This is a development release it is recommended for users to keep using the 1.0 branch in boxturtle.  If you are wondering see http://www.ros.org/wiki/StackVersionPolicy

The primary motivation of this release is a major rework of Gazebo's underlying data structures (THANKS to Nate for his hard work in making this happen!).  With this release, we are again near the latest svn revision of the Gazebo project.  Some of the changes include:
pr2_simulator 1.0.2 release allows for compatibility with simulator_gazebo 1.1.  In particular, macro gates such as:
#if GAZEBO_MAJOR_VERSION == 0 && GAZEBO_MINOR_VERSION >= 10
    sim_start_  = Simulator::Instance()->GetSimTime().Double();
#else
    sim_start_  = Simulator::Instance()->GetSimTime();
#endif
allowing the plugin codes to be compatible with both simulator_gazebo pre-1.1 and 1.1 release.

If you are interested in the details feel free to take a look at the code.  Feedback is always appreciated.

John

For the full changelist see http://www.ros.org/wiki/simulator_gazebo/ChangeList and http://www.ros.org/wiki/pr2_simulator/ChangeList