Its so damed confusing and difficult to use. I spent three days trying to install something on my Fedora 11 machine that would take me no more than about 10 minutes in Vista (or any other version of MS-Windows). As an example: wxWidgets. I couldn't even successfully compile their online Hello World tutorial because of uninstalled extra packages. Then after installing more packages using yum program, tried to compile Hello World and the g++ compiler couldn't find some include files. So I used find command to locate the header files and created a makefile to set -I flags for the include directories. That finally worked, but now I get trillions of undefined variables error messages. From this short experience it is no wonder that more *nix programmers don't commit suicide!
As for Vista: the same Hello World tutorial compiled without errors or warnings in about 15 minutes using VC++ 2008 Express. And not much more than that using Code::Blocks.