If they're projecting a late October release, this actually makes sense to me if it's the Quad-Core. Reason I say that is because of the interview with the Tegra executive that said that compatibility with LTE should be ready by 3Q. October marks 4Q, so it would give just enough time to make it work.
Then again, still wouldn't surprise me if it's dual core. either.
It will be interesting to see how this plays out.