WoTC released the map and art galleries for issue 159. They're available to anyone; you can view them through the website or you can download them as jpgs.
These are actually free content - actually, as far as I can tell, the final two updates of the month are simply the compilations of the full magazines. Which I'm not too sad about, since it means they are staying on track, as opposed to the dozen updates flooding in at the end of the month that we saw previously - still, it doesn't quite satisfy the M/W/F fix one comes to expect, now does it?
They probably should have thrown in a Martial Powers or Draconomicon excerpt to tide us over. At this point, I want the Dragon compilation so I can the errata'd info. Plus, I want to see next month's ToC or editorial calendar.