You'll have to make your own decision, but Raed, an Iraqi blogger who is CONFIRMED to be in Iraq, has linked to this blog and apparently has no doubts.
http://dearraed.blogspot.com/
Raed has many of the same opinions, I guess the "it's not real" defense is crumbling pretty quickly.
I find it funny that people on this board believe that NO FOREIGNER COULD EVER LEARN TO WRITE ENGLISH THAT WELL. It seems like the general impression is that all Iraqis are illiterate fools who spent all day watching their wives get raped by Saddam's sons when they weren't being fed into plastic shredders.