I have recently moved all my notes templates to a Git repository. Well, not all of them, just those I currently have on my disk. And there are in fact several Git repositories they are now in.
When IBM announced version of Notes Client based on Eclipse one of the first things I wondered was 'will I be able to use version control system with Notes, at last?'. The answer was 'No'. And it didn't make me happy, because once you have the opportunity to use even the old CVS in some project, it just feels like having only one hand if you can't in another project.
When IBM posted Source Control Enablement for Designer project on OpenNTF.org site, I was already kind of spoilt by Git. Of course I installed and tried Source Control Enablement project. But I just briefly tested to put NSF into SVN repository and then I did a svn checkout on a different computer. Cool! But what about Git? I quickly found out that EGit project for Eclipse is not working with Domino Designer and that was it.
Luckily Nathan T. Freeman did not stop at that point and made several modifications to EGit to make it work with Domino Designer. So go grab it from OpenNTF.org and welcome to the world of version control, branching, backporting and team development.