According to TechCrunch.com the gaming company Zynga just announced their latest game and its called Castleville.
Castleville.com is under privacy at Godaddy.com and the domain doesn’t really resolve at the moment.
The domain was registered to someone in Shangha China using Tucows.com until August 8th when it went under privacy at Godaddy.com
So if one had to place a bet, it looks like Zynga may have acquired the domain prior to the announcement.
Of course I think they should have went with Hotelville instead but I’m prejudiced .