[Wine] A Sims Oddity

[Wormboy]

http://appdb.winehq.org/objectManager.php?sClass=version&iId=16664
As much as I am leaping for joy at the thought that i'll be able to play the Sims 3 without switching to Mac OS X or Windows, I have a question:
1. How would they know if the game works or not if it doesn't come out till July???
Also, I find it a bit of an oddity that The Sims 3 will work under Wine straight away when its predecessor has been out for nearly five years and still doesnt.