Magazine publishers tripped over themselves to get on the iPad, because they thought they could sell you pretty things like this to revive their depressed print business, but then Apple was kind of a dick about it, and even though Apple took it all back, magazine publishers are still totally leery about being completely beholden to Apple for tablet moneys—but all of the Android tablets suck so nobody is buying them, leaving the publishers with not a lot of places to go, but hey Amazon's tablet looks like it might be okay, so now three of the big publishers are on board with it—Conde Nast, Hearst and Meredith—but not Time, at least not yet (or Bonnier).
If magazine publishers are leery of Apple because they wanted a cut of their money... isn't Amazon gonna want some money too?
The whole premise of the Amazon tablet is to sell it cheap and make up the difference with content.
Magazines will be some of that content.
The Kindle is rather cheap for a book reader... but people fill it up with $10 books. I suspect their new tablet will follow a similar plan.