Well, in Katherine's defense, all those sales were to Apple fanbois who, as we all know, are well outside the open-source-loving mainstream.

When in business, it it advisable to follow rules that are simple for staffers to learn. This is best exemplified by those precepts that can be put into an easy-to-remember acronym. For example, anyone who's seen the movie knows that the paramount principle in real estate is ABC: "Always Be Closing."

Interestingly enough, Microsoft also uses the ABC acronym. But in Redmond's case it stands for "Always Be Confusing."

that after using the aforementioned "Metro" monicker for its tile-based interface since the introduction of Windows Phone 7, the company is now telling employees halt all internal and external use of the term.