So just got my fire for xmas, working great so far. Got calibre right off the bat, got some great free books installed. Figured out how to view pictures and videos of my grand daughter, etc.
Even got a version of slingplayer mobile on it and working - simple google to how to get free version on it, etc.
But for some reason seems my kindle does not have an email address to be able send stuff with, which for example I would like to setup with calibre vs having to use usb cable.