Amazon Kindle DX Graphite gets tested

Not a lot has changed here -- but Amazon's given a pretty decent upgrade to the DX, a large reader that was originally targeted at students. While there's surely a demographic out there for super-sized devices in general, we're not sure that students on-the-go are the ones for this device. As our previous review of the DX stated, for now at least, a laptop, highlighter, and text still win in most cases. That said, this new $379 DX is definitely an iterative improvement over the last one. If you're a current DX owner, you probably won't feel any need to upgrade, but if you've been thinking about buying one, these improvements might be enough to get you to finally bite.