Yeah, I understand your problem because I just have the same thoughts as you. I was so thrilled about Que and all those promising new technologies out there that I just kept waiting for those new, great products. I have similar needs, big screen for academic, technical pdfs. But as nothing came till June I started considering buying DR1000s. Now with Irex going for Liquidation it is not that great option anymore.
I started to think about Entourage Edge. Maybe you could consider it as well. It should be shipped in Europe on 10th July and from what I have heard on Edge Forum it is really promising. The size is not that much of an issue for me so I suppose I would buy one of those in the end. But I still dream there comes the QUE. It is just so beautiful
I have no hope for other ones. We haven't heard a lot about them for a while.