Greetings!
First, incredible job on OS Dev team.
We've noticed a wave of stability since 4200 or so.
Regarding I want to let you know there is a huge security hole in OpenSim. The ability to use C# and System libs will allow in world scripts to view and or save data to sim hosting machine. In addition, a simple: ReadLine() will cause the OpenSim.exe to crash on first <return> on console.
Running 4387, kubuntu 7.10