If the poll in Maryland proves true or McCain wins the popular vote by 6-7%, 1988 style, and I mean HUGE IF, then I don't see how Arkansas can possibly go blue. It would have to jump left by over 15 points. Bill could do that back when Arkansas was much more Dem on the national level. Hillary won't, and Arkansas has been trending GOP. Giving the same argument about state trends vs. the national average:
From '92 to '96, AR swung slightly towards Dole, making Clinton lose ground by 4 points relative to the national average.
I'll take polls over faulty trend logic. Go explain the trend in Georgia between 1960 and 1984. There's a hell of a lot of independent factors that can throw it off balance.