I downloaded and installed the new Xcode yesterday to work out some ideas I had and I found that it ships by default with git integration.
Click here to find out how to enable multitask gestures for your iPad.
Turns out that after the installation process the package takes up about 10 gig on your hard drive but it includes all the earlier iOS version packages as well. When I started my new project Xcode asked me to put my files under GIT version control. I was surprised about this integration and off course I clicked yes.
Xcode now works and integrates with git to keep your files under version control.
If you want to get started with git and you are working on Mac than this is pretty straight forward. Download the git-osx-installer from code.google.com
Now sit down and start reading on how to get started with git. This is an excellent online book: http://progit.org/book/