For customers interested in buying the Kindle Fire HD 8.9, Amazon has some good news and some bad news. The good news is, the company is shipping the device a week early. The bad news is that it’s already¬†back-ordered.

“Due to popular demand, orders placed today are expected to ship the week of December 3rd,” the device’s Amazon page says.

The Kindle Paperwhite tells a similar tale: Consumers who order the Amazon e-Reader won’t get their devices until after December 21. Both devices join Google’s Nexus 4, which sold out shortly after going on sale this week. Clearly, we’re seeing a trend here.

Unlike Google, however, Amazon is still taking orders on its devices, even though they won’t ship for a few weeks. So while Google isn’t sure when it’ll have more devices in stock, Amazon seems to have its own situation all figured out.

In any case, when the Kindle Fire HD 8.9 does arrive, it will find itself in the middle of a very busy 7-inch tablet market populated by the Nexus 7 and, more recently, iPad mini. And probably the last thing Amazon wants is for its Kindle Fire HD backlog to push potential customers in the direction of the competition.