Well, anyone can steal a logo.
Obviously, but to say it is not real because it is not grainy would be a miscalculation. As far as I know the feds have authenticated the fact that it came from al Qaida, they just do not know who is speaking.
It may not be 'real,' but I wouldn't count on that being a fact.
Fox TV News Reporting Indian Intelligence has Sighted Bin Laden
http://www.freerepublic.com/focus/f-news/1263720/posts