Keyboards are just XML files. If you're on Mac OS X 10.3, you can find samples inside /System/Library/Fonts/Unicode.bundle/Contents/Resources/*.keylayout.
Documentation on the XML keyboard file format for Mac OS X can be found in Apple Tech Note 2056:
http://developer.apple.com/technotes/tn2002/tn2056.html
Deborah Goldsmith Manager, Fonts / Unicode liaison Apple Computer, Inc. [EMAIL PROTECTED]

