A handful of MacMinute readers report receiving shipping notices for Mac OS X 10.4 Tiger from the online Apple Store and MacMall. Two readers even informed us that they’ve already received their ordered copy of Tiger, a week before the update will be rolled out officially. Those that have received shipment confirmation are reporting expected delivery dates of early next week. Mac OS X 10.4 Tiger will go on sale at special events at Apple retail stores and Authorized Apple Resellers across the U.S. on Friday, April 29.