I don't use windows much but msysgit is good. I was pleasantly surprised with it. The GUI is a bit fractured in terms of what it can do but the command line is

I don't use windows much but msysgit is good. I was pleasantly surprised with it. The GUI is a bit fractured in terms of what it can do but the command line is competent. For a commercial product that needs to be integrated in the windows world like kiln I would have made the same decision that Joel did. (Though I prefer git overall)