The Execution or The Idea? Here's How the Greatest Minds in Tech Answer.
derekflanzraich.com
derekflanzraich.com
Check it out: http://www.oreillynet.com/onlamp/blog/2005/08/ideas_are_just...
So, awesome idea, flawless execution that preemptively outdoes competition, and being lucky.
I _LOVE_ those odds anyway :)