Trick is rather simple, one needs to twist the bottle in certain angle and then take a look underneath the cap. The winning code can't be seen, but in bottles that don't have the winning code, parts of the "apology", namely the text "again" (as in something like "you didn't win, please try again") can be seen.
Now, we're just waiting whether this guy can be sued under DMCA legislation or trade secrets laws...
More info and instructions:
MacMerc.com
Written by: Petteri Pyyny @ 18 Feb 2004 15:19