Well, I had just decided to let my Dungeon subscription lapse before this announcement. But I have officially resubscribed.
I didn't have any problem with the notion of Polyhedron; it just very rarely appealed to me personally. I do play almost exclusively D&D (or at least fantasy D20), so very few of the mini-games provided me with much. The notion of replacing that space with DM-oriented articles appeals to me.
I do feel sorry for the Poly fans, and I was certainly not one of those calling for its removal. That said, I know that I'm happier (at least hypothetically) with the announced new format than the old.
On a related topc...
Since Paizo is launching a new run of Amazing Stories, surely the fiction in Dragon can go away? After all, AS is devoted largely to fiction. That would permit space in Dragon for either more D&D stuff or a single Ares-style article per issue covering something else in the D20 universe. I know that I, despite my fantasy-centric focus, wouldn't mind either.
I'd also like to second (third? fourth?) the call for more Open Content in Dragon and Dungeon. I'm not suggesting that Paizo release anything that's WotC's property, but surely it would do nobody any harm to allow the new feats/PrCs/monsters/races/core classes/spells/items into the stream of Open Game material? Given how long a specific issue is on the shelves, I can't imagine that doing so could possibly hurt sales. Sure, it won't boost sales much either, but it might boost them a little--and it would certainly provide for more goodwill in the industry, and when that can be done without harming the bottom line, it's never a bad thing.