As you might remember from when we posted this news a few days ago, the official MLP comic under production was pushed back until November 28th. This apparently caused some nashing of teeth and some fluffing of tails, so the artist responsible has released a journal on DA detailing some of the reasoning why the schedule was pushed back. There's also some more information in general about the comic and what you can expect from it.
Check out his journal entry here for more info.
In other words, you guys scared them with how many you pre-ordered. Great job!