While Apple's supposed October 23rd event still exists only in the land of leaks and rumors for now, there's mounting suspicions that it won't just be a one-trick pony if it becomes real. Both AllThingsD and 9to5Mac claim to know that a 13-inch MacBook Pro with a Retina display is also on the cards for the presentation and would be just what you'd expect: a smaller version of the 15-inch model with four times the screen resolution of its co