But, please make a zipped portable version available for Windows. You don't have to include a binary version of Nim (although that would be nice) but do put the required MinGW pieces off a subdirectory under Nim as was done with earlier releases. This allows unzipping to a thumb drive, xcopy installs, and using Nim anywhere without having to permanently install on specific systems. Also, it makes things really easy for a quick demo when showing someone else Nim on their machine.
(FWIW: The sad state of Windows is that almost every installer out there, MinGW included, means crapping in your system to some extent and never knowing what went on nor being able to removed all traces of what was installed. With each installed application you have to make a conscious decision whether it's worth the unpredictable OS pollution to install the application on a particular machine ... because you know with each install that your headed to that inevitable last one where you have to wipe the entire OS and start over.)