Amazon.com has come up with a way to get the Kindle Fire HDX tablets into more hands. The company is offering a nine-month financing option that is interest free. You just have to pay 25% of the whole price up front and another quarter is due every 90 days. If you fail to pay off the device, then Amazon retains the right to deregister the tablet and block access to Amazon content that you have paid for like Kindle books. The 7-inch Kindle HDX starts at $229.