The Pragmatic Bookshelf is releasing a [book on using Git](http://www.pragprog.com/titles/tsgit/pragmatic-version-control-using-git) for version control.
Steven Walter released a new command-line front-end for git called [yap](http://lwn.net/Articles/297285/). It’s not only supposed to make it easier to work with git, but also with subversion repositories. It’s available from [http://repo.or.cz/w/yap.git](http://repo.or.cz/w/yap.git)