Apart from the release of gedit introduced on the previous post. Here you can see the last release of gitg running on Windows. There are still some minor problems with it but it is already working good enough for a daily usage. Also, it integrates with the context menu so you can right click on a folder and open it with gitg which will open the repository if it is a repository or fallback to the dash if it is not.
Download the the installer of gitg from this link.