Some participants say that Nanowrimo is something they put on their resumes to spiff it up and catch attention. I'm taking a professional development class right now and one of the assignments was to prepare a CV. I don't want to put a damper on things, but sometimes, you shouldn't put certain things on your resumes or CVs--depending on the job you're applying for. One of my professors gave an example: if you're applying for a teaching job, it would totally piss off the search committee if you put your research experience first. If you're going to put hobbies down, it had better be related somewhat to the job or you're going to place doubts in people's heads.
So unless my career prospects totally veer off track to Never-Never-Land, I am never going to put Nano in a job application or mention it at an interview.