git difftool to give directory compare?
Update June 2012 (2 and an half years later): This (comparing directories instead of file-by-file) seems to be soon available: See [ANNOUNCE] Git 1.7.11.rc1: “git difftool” learned the “–dir-diff” option to spawn external diff tools that can compare two directory hierarchies at a time after populating two temporary directories, instead of running an instance of … Read more