ZFS speculation from OS News:
http://www.osnews.com/story/19757
http://practical-tech.com/operating-system/linux-and-sun-partnering/
http://blogs.sun.com/bonwick/entry/Casablanca.

The comment from Lord Illidan on Bonwick's blog post is interesting:

Is it just a coincidence that the title is Casablanca, and the end line of the film is : "Louis, I think this is the beginning of a beautiful friendship."

In the 1970s, a series of commercials was run for Reese's Peanut Butter Cups featuring situations in which two people, one eating peanut butter and one eating chocolate, collided. One person would say, "you got peanut butter in my chocolate" and the other would reply, "you got chocolate in my peanut butter." They would then sample the mixture and remark on the great taste, tying in with the slogan "two great tastes that taste great together."