Julie just posted in the feedback forum that the new review system is not yet up and running. (This explains why so much spam has made it on to the site recently.)
The first stage of the system is in place - and it checks articles for plagiarism and duplicate titles only. This is why new articles will go to "pending" when first published.
The sweeps will continue until they can integrate the editorial review process into the preview process. She did not estimate when that would happen.
(Als0 check out newer information I have in the eHow Earnings Update Post.)