Amazon is the king of not actually saying anything in a press release. According to this Press Release these things are true:
1) Amazon has sold more than 1 million kindle per week for the last three weeks (all models combined).
2) Kindle Fire has been the best selling product on Amazon for 11 weeks straight and it is the fastest selling Kindle so far.
3) Sales of the Kindle Fire have increased over the past three weeks
But it is also interesting that Amazon admits that, “Customers continue to report preferring their Kindle (eink) e-reader for long-form reading, and in fact we’ve seen many customers buy two Kindles ““ both a Kindle Fire and a Kindle or Kindle Touch ““ this holiday season.” I have long said that eink is the best format for long form reading, but LCD (like the Fire) is still preferred by some because it can render color and video.
The world of ebooks is just starting.
If you are thinking about buying a kindle. Here is the Bookwi.se Kindle Buying Guide