You can do both. You can charge while using kindle of u can just charge by not using kindle.
No - since the Kindle is only available through Amazon, and they do not offer a COD option, you have to pay for the device when you order it - not on delivery.
No.. there's no charge for using your Kindle but there ARE magazine and newspaper subscriptions available that have a monthly fee for using them. I've read of people subscribing to their local newspaper so they can read it on their Kindle while taking a train to work or they just find it more convenient as well as saving trees.
Yes. You can also read them on your laptop, using the free Kindle app.
amonth
Yes, on almost every book you save a percent off what you would pay in stores. So eventually the kindle will pay for itself.
Yes you can buy apps they are from Android so they are pretty decent
to kindle or excite
The Kindle has a browser in the Experimental Apps section. You can access most web sites using it. It is a bit difficult to navigate, but it works fairly well.
you cant.. maybe you should just PAY
You cannot change your cover photo on Facebook using a Kindle Fire. You will have to change your cover photo on Facebook using your PC computer or your laptop or netbook.
You get 4 free books when you buy one. But you need to pay for the books YOU want.