Who wants a dedicated ereader? Not a lot of people. Not yet, anyway. But there are three groups, maybe four, that are hot for the Amazon Kindle, the Sony Reader, and the other wannabe contenders.
We've talked to scores of people in our studies, and we aren't yet seeing much demand for dedicated ereaders. People almost always like the ereaders better after they've tried them, but not enough to actually want to buy one.