Amazon recently announced four new Kindles: three digital readers (a $79 entry level no-touch screen e-reader; a $99 touch screen version; and a $149 touch screen version with both touch screen and 3G), plus a $199 first-ever Amazon tablet, named Kindle Fire.

While the two under-$100 Kindles are enough to put a smile on the faces of most e-book fans (and a worried frown on the faces of the competition), it is the Amazon tablet that is really creating all the buzz.

Kindle Fire is described as a 7-inch media-consumption tablet catering for the consumers of the bottomless content from the Amazon stores: movies, TV shows, music, books, magazines, apps, and games.

The reviewers have pointed out that Kindle Fire has no camera, no microphone, no 3G, and no GPS. But then, that is what helped Amazon keep its price so amazingly low that the device is likely to put the digital world on fire: only $199.

Will Kindle Fire burn all its (more expensive) competitors, like iPad, Blackberry Playbook, or Samsung Galaxy? Watch this space to find out! (“This space” being the bidorbuy tablet section.)

Note: the Amazon Kindle Fire is expected to appear in shops on 15 November 2011. All the prices mentioned here are for the US.