Since the rules change (i.e. become easier) each day, the day number gives you some indication of the relative difficulty in performing the exploit, even though

Since the rules change (i.e. become easier) each day, the day number gives you some indication of the relative difficulty in performing the exploit, even though the exploits themselves are prepared in advance: http://cansecwest.com/post/2009-03-18-01:00:00.PWN2OWN_Final_Rules http://cansecwest.com/post/2009-03-18-01:00:00.PWN2OWN_Final...