Apple has officially announced that Mac OS 10.5 will be coming out on Friday, October 26. Here’s a list of 300 new features to be found in the upgrade. They’re also offering free delivery if you pre-order, and guaranteed delivery on the 26th. AppleInsider has been running a nice series on some of the new features that will be introduced. See: Road to Mac OS X Leopard: Finder, Dock, Spaces, and Time Machine, among others.