I agree pretty much with what ajax said, but Alberto's post struck me as pretty weird. Given that git's internal format has been unbelievably stable (indeed, far more stable than bzr: a few times, I've just given up trying to get code because doing so would require me to compile a new bzr -- barrier to entry like what), I don't see what's stopping anyone from developing alternate git clients that are all Windows-friendly (or OS X-friendly, or Eclipse-friendly, or whatever).