There has to be some standard in place to make porting between different OS' work. It is common in many places that the file name and case matches that of the class it holds, which is why, I believe, this particular standard was chosen. However, if all of your files are capitalized as per the docs, then there shouldn't be an issue moving between Windows and *nix, as Windows is case-insensitive, while *nix systems are case-sensitive. Hence, the need for a standard in the first place....
