[fjtorres]

Well, part of the problem is that the price war has dragged 6in prices (and device sizes) into 5in territory. Both the basic Kindle4 and the Sony T1 (to name just two) are as pocketable as the PB360. And both are cheaper in most locales.

Not sure about Sony volumes but the Kindles and Nooks sell by the millions so their development costs get spread over a lot more devices--ditto for support and other overhead. And those devices can survive on razor thin margins because their primary role is to sell ebooks from their respective bookstores. None of that applies to the Pocketbooks.
It's not a friendly environment out there for low-volume hardware-only vendors.

All that said: Pearl screens are nice but they're not *that* much better. Their main virtue is really the greater grayscale depth, which allows for better anti-aliasing.
I don't find it all that much better when I switch from my T1 to my old-style PB360. But then, I use Coolreader3 on both and Coolreader right now has excellent antialiasing everywhere.