Yeah, I heard about that and my first reaction was that plenty of Pokemon game names have been registered and never used (WhiteGold anyone?), and then I saw the logos...

http://bulbanews.bulbagarden.net/wik...Moon_uncovered

Not sure if any other unused name got a logo before. Also, according to that article, Masuda made a reference to the sun and moon and even posted a picture of the moon during the day. Sounds like we have our new games. We'll know for sure tomorrow.