Unless apple was stupid enough not to include the paperclip-eject-hole on some versions of the Mac. In which case, I take back anything good I ever said about Apple.

From the Apple page linked above:

Attempt to locate the manual eject hole on the optical drive. The hold is sized for a paper clip and is located on the insertion side of the device. Some computers, such as the iMac (Flat Panel), Power Mac G4 Cube, and certain models of Power Mac G4 (QuickSilver or later), may not have a user-accessible eject hole.

Looks like a retraction is on the way...

/Michael
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/Michael