F-Secure Reverse Engineering Challenge is over. From the Khallenge page:
Khallenge is now over. During 70 hours, Khallenge was started by over 1200 people. First level was completed by about 400 individuals, second by less than a hundred and the final level of Khallenge was finished by just 16 people.
I think I was 9th of those 16 people.
Didier Stevens 