Actually, I voted for the Sony Reader too. I pick the Sony Reader mainly because its price, its size and the expectation that it will be reasonably possible to put your own content on the device. Which, in all fairlyness is all I want.
While the irex is certainly larger and boosts more specs....specs aren't everything. In fact, I prefer a solid device without to many features. I have nothing against decicated devices, unlike doctorow, but let them stick to what they are intended for.
I am rambling.