Amazon may have ignited a price war with the introduction of new Kindle Fire models starting at $159, and $199 (and up) for the HD variants. However, the low prices come with a couple of caveats. First and foremost. every new Kindle Fire tablet comes with what Amazon calls "special offers" that appear on the lock screen. These are essentially ads in the form of money saving offers. Secondly, if you want a wall charger, that's a $10 add-on. Let's take a closer look.

Amazon yesterday announced that it had sold out of its Kindle Fire tablet, ending a nine-month run for the popular 7-inch slate. There were two things of note in the press release. First, company founder and CEO, Jeff Bezos, added fuel to speculation that an upgraded second generation Kindle Fire tablet is en route when he said Amazon has "an amazing roadmap ahead." Second, Amazon made the claim that Kindle Fire had captured 22 percent of tablet sales in the U.S. Exactly how many tablets is that, anyway?

It's looking increasingly likely that Amazon is gearing up to launch a full-size Kindle Fire tablet to sell alongside its existing 7-inch model that's been so popular up to this point. Courtesy of some savvy online detective work, it was discovered that Amazon once again may have used a shell company to sneak through paperwork for its next generation Kindle Fire device, though details are fairly light at this point.