When Amazon announced its new range of Kindle Fire tablets last month, among them was its first device with mobile broadband. The high-end Kindle Fire HD 8.9″ 4G LTE can connect to AT&T's 4G network but, since it has support for 10 bands, it can also fallback to the 3G networks as well! The only snag was that at the time of the launch, Amazon didn't have U.S. Federal Communications Commission approval for the device! Although it could be seen as a foregone conclusion that the device would pass the FCC's tests, it certainly wasn't, especially when you consider that this is Amazon's first device with any kind of cellular technology.
The tablet, which will only be available in the USA, needs FCC approval before it can be sold. The FCC checks all devices that have wireless communications to assure that they operate safely and do not interfere with other radio signals. Most companies seek FCC approval before announcing a product, however the rapid changes and developments in the tablet marketplace probably forced Amazon to go ahead with its announcement before getting the final approval.
You can pre-order the Amazon Kindle Fire HD 8.9″ 4G LTE now before its official release on November 20, 2012.