Getting some assignment windfalls so I'm going to celebrate by buying either a Kindle DX or an iPad (just wireless, no 3G).
I'm not sure how much I buy the idea that reading from an LCD screen is that much harder than reading E-Ink given that I spend most of the day looking at an LCD screen, and I certainly like a color display given that I have a lot of RPG pdfs in color.
On the other hand, reading a 300 page book isn't the same as glancing through web pages and writing. And I suspect the iPad's 10 hour battery life will turn into 5 hours in practice given my experience with laptop computers. Which is an issue given that one purpose of having the reader is to use it on flights from Newark to Los Angeles, and the added hours waiting for the flight.
And, then again, the other uses of the iPad could also be handy down the line.