A colleague and I were discussing source control systems the other day. He was praising the benefits of Git, and how it truly enables you to do feature-driven development. I had heard of Git before, but his enthusiasm sparked my interest. So I watched a video of Linus Torvalds talking about Git - it does sound promising. Linus's main point (for me, at least) is that merging is a pain in most other source control systems. I agree - I've tried using branches in TFS "to try things out" but when it came to merging the stuff back into the trunk, it turned out it was easier to apply the changes manually. So I will definitely try out Git in the near future.
Linus has some strong and negative opinions about systems like SVN - the word "moron" is used a number of times. I wonder what Linus would say about The Source Control System That Must Not Be Named.