Just got my copy today and the idea of breaking the dungeon up along the folds is a good one. As for the actual folding process that was used in the production of this month's Flip-Mat, it really mauls the map.
Whereas previous maps have been fan-fold along each axis (i.e. each third is folded in a different direction), this time all of the folds were done in the same direction like if you were folding a flag. This simply puts too much strain on the map and the result is that it ends up horribly dented and crushed in spots.
I really hope that subsequent maps will return to the prior folding methods as this really lowers the presentation value. :(
EDIT: I also want to add that this is not a case of the product being damaged during shipping — the slip cover that encloses the flip mat is pristine with no dents or warping of any kind.
I wouldn't call it warping. At least in my case. Pretty nasty deep creases where the pane has pretty much folded back onto itself. Hopefully CS is on it.
I'd also like to add that the colors are not nearly as "bad" on the physical product as they look on the preview images. You can see the underlying map, and also the intended effects of mist, smoke, energy. etc much better. In the preview image, you can't see all the detail and it sort of looks like a child was let loose with a pastel on a map.
On the subject of minute detail that you can't see in the preview, the mosaic tile texture on the floor looks flippin' awesome!