The story described how an orienteer could buy high quality maps from Sweden's national survey agency and use OCAD to create an O' map of an area where a big competition is coming. The article noted that some of the French and Norwegian orienteers had made their own O' maps of the sprint area for the 2003 WOC.
The story also had some quotes from Sweden's national team coach, Goran Andersson [translations are a bit rough]:
The technological developments give us opportunities we haven't had before. I'll discuss it with my national team runners to see what we'll do in the future.
To be able to study a map of the actual competition area before the race gives you mental and O' technique advantages that you can't underestimate. And keep in mind, this development has just begun.
Emil Wingstedt is also quoted:
Regardless of what you know about the terrain in advance, you've still got to have good legs. We already try to get as much advance knowledge as possible, through maps over areas near the competition terrain....
I've been wondering if orienteers preparing for races have started creating their own maps in OCAD, then importing them to Catching Features. It seems like that'd be a good way to study the terrain.