For the last week, I've been reading off of a Kindle e-reader that somehow costs twice as much as a brand new Kindle Fire HD tablet. What a world! And while I still don't know if the Kindle Voyage is worth $200 (or $290 for the 3G model) I do know that it's the best e-reader ever built. What Is It? Amazon's attempt to create an ultra-lux e-reader: an edge-to-edge glass-screened marvel that can hol