We just released the latest version of the Solaris Crash Analysis Tool. For more information, see the Solaris CAT Blog. Many folks have asked why we are developing and supporting Solaris CAT when Solaris provides mdb. There's several reasons: mdb kind of assumes the user has some knowledge of the Solaris kernel, mdb is more of a debugger than an analysis tool, Solaris CAT provides aggregation features (thread scanners, device aggregaters, streams checkers, etc) that mdb does not provide, and, frankly, Solaris CAT makes analyzing Solaris crashes easier. I look at it like the editor wars for the 80's and 90's - I prefer vi but have no problem with folks using Emacs. Use what you like but don't complain about those who use something different.