Apple (AAPL) announced Tuesday that it will hold a press event Oct. 23, presumably to reveal its expected iPad Mini tablet. Apple's invitations to the media state, "We've got a little more to show you." The event is being held at the California Theater in downtown San Jose, Calif. Media leaks point to Apple unveiling a smaller tablet with a 7.85-inch screen that would complement its regular 9.7-inch-screen iPads. The biggest unanswered questions