Back for round two, the true successor to Amazon's flagship tablet is finally here in the form of the Kindle Fire (2), coming with upgraded processor, memory and battery but otherwise identical to the original model. Tempting consumers with its attractive and lower price point of $159, it's sure to raise a few suspect eyes in the process, but will it still be substantial enough to make it a worthwhile offering compared to its more impressive sibling in the Kindle Fire HD?...