appears to have let the cat out of the bag and is now listing March 31, 2005 as the ship date for Apple’s latest operating system release, Mac OS X 10.4 “Tiger.” The price is listed as US$129.99 and no upgrade pricing was noted. Apple has previously stated that Mac OS X 10.4 would be available in the “first half of 2005,” and has made no official comment on Amazon’s posting. Update: Amazon has now removed the date from its site.