CanSecWest 2008 announces the PWN2OWN contest where vanilla installs of Ubuntu, Vista, and OSX will be hacked. The winners get to keep the machines!
You can download it from the following link: https://packetstormsecurity.com/files/download/64793/cansecwest-pwn2own.txt
Source: https://packetstormsecurity.com/files/64793/cansecwest-pwn2own.txt.html