The N being an angel/being Zoroark rumors are completely false. I would know because my uncle works at Nintendo.

Here's the real scoop though: N is made out of godfuckingdamn triangles. Don't believe me? Look at this evidence:

http://draikinator.deviantart.com/art/Study-of-N-177286981?q=&qo=

Holy penis what a scoop.

Also if you connect your Black or White cartridge up to your copy of Ocarina of Time, N gives you the fucking Triforce. Holy shit.