You will need to fetch updates later. I presently hold copyright in my code but I plan to change that to the GNU copyleft. You can copyright your source any way you please, but to enter the contest, you must allow me to post your source for anonymous FTP along with the Life framework. The Contestants Send me your URL and I will put a link to your homepage here. Mail addresses are acceptable URL's if you have no homepage.
Life is one kind of cellular automaton.
See bomb for another. Chris's Mac Development Page has many links to pages and people in the world of Mac programming. Nick's Place also has links on Mac programming, with articles written by Nick himself.