Well, I bought my Kindle DX about two months ago -- I am quite happy with it. As part of my evaluation process, I looked at Plastic Logic, liked what I saw, but decided I didn't want to wait (uncertain delivery date; uncertain price)-- so I went ahead and bought the Kindle DX. My interest in e-book readers was more as a laser printer replacement than as a book reading device. I do a lot of technical research on the web, and end up printing a lot to paper (I can't stand reading off screens). So I was looking for a device that would in effect enable me to "print to reader device". Using a "print to PDF" facility, along with the Kindle DX's PDF display capability, I was able (a little bit clumsily) to do this. I also read a ton of books for pleasure, and the e-book book reading capability was a strong secondary motivator. At present, I probably have about 150 general reading titles, and maybe 50 rather long technical PDF documents on the Kindle DX, and I do not seem to have made much of a dent in the 3 GB storage capabilities of the KDX. I do wish that the PDF rendering capabilities of the KDX were a bit better, but I can live with what I have.
Now along comes the Plastic Logic QUE device, which addresses most of my needs better than the KDX does. If the QUE device were available today at the prices quoted, and I was comparing the QUE versus the KDX, I would buy the QUE. I do not find the absence of an SD slot, nor the absence of 3G access (in the cheaper model) problematic. Even though the QUE is in many ways superior to the KDX, I will not rush out and buy one when it becomes available in April. Much of what I like in the QUE, could easily be provided in the KDX via a software upgrade. I am hopeful that the verities of a competitive marketplace will lead Amazon to "see the light"

.