Hmmmmm.....
It may also be, because they are preparing special editions of the Kindle for those countries, which will surreptitiously infect babies with AIDS and cause impotency in men....
It can't be anything else.... Hmmmm....
P.S. Just saw your post above. You may have kind of a point regarding the more orthodox Muslim countries (god forbid someone downloads The Satanic Verses from Amazon,) but I would still guess it may have to do more with publishing rights and restrictions.