How do you setup a G++ compiler for MonoDevelop?
On both OS X and Windows Vista the default install complains about "Compiler Not Found: g++".
Is MonoDevelop not a good cross platform IDE for C++ development (since it is a C#/Java IDE).
I would say it is not. C# and C++ are 2 different worlds. My suggestion: If you want to write xplatform apps in C++, get familiar with either wxWidgets or QT. wxWidgets has a more liberal license though and does not need a metacompiler. In the newest release it makes also use of the STL, if the compiler supports it.