Amazon claims over 4 million Kindles sold during December
Amazon has reportedly sold more than four million Kindle devices in Deember - at a rate of about a million per week.
The company has announced an increase in sales of all Kindle devices, from the Kindle Fire Tablet through to the $79 Kindle reader.
Amazon has also said that the gifting of Kindle books was up 175% over last year, but again didn't provide specific numbers.