A brief review of Amazon's new Kindle DX Graphite has been published at Engadget. The reviewer says it's a decent refresh, the new Pearl display from E Ink looks a lot crisper and it has a faster refresh rate than the previous model.
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.
Sometime in September you can expect a review of Amazon's new Kindle 3 at DV Hardware.