Yesterday a poster in the Apple Forums pointed out that the Macedonian keyboard layout supplied by Apple has a mistake in it, where the character з (U+0437) has been replaced by э (U+044D). The uppercase version is OK, however. Also the layout has as deadkey which does not belong there. A corrected keyboard, Macedonianz.keylayout, is available on my iDisk.
I checked the Panther layout and found the same errors. It seems strange I've never seen this reported earlier. Is it possible that before now no one has used OS X to type Macedonian since Panther was released?