Apple Style Guidelines

It's encouraging to see that Apple has standard style guidelines which developers are supposed to apply to their software.  I came across this while reading through the Apple Human Interface Guidelines.

The Apple Publications Style Guide covers style and usage issues, and is the key reference for how Apple uses language. This document is available in the User Experience Reference Library; consult it whenever you have a question about the preferred style of particular terms. For issues that aren’t covered in the Apple Publications Style Guide, Apple recommends three other works: The American Heritage Dictionary,The Chicago Manual of Style, and Words Into Type. When these books give conflicting rules, The Chicago Manual of Style takes precedence for questions of usage andThe American Heritage Dictionary for questions of spelling.