Amazon changes Kindle personal documents fee structure

I just read on Gear Diary that Amazon is changing the fee structure for sending personal documents to your Kindle device. As clearly stated on the Amazon Kindle blog the old fee of 10 cents per document is now changed to 15 cents per megabyte. This actually may result in lower fees if you have been sending smaller sized documents to your Kindle. I primarily use my Kindle for reading ebooks and rarely have a need to convert documents using their wireless fee system.