Originally Posted by rcuadro
Really? Perhaps it is something that I need to experience to see the benefits/drawbacks
It is a standard feature of several firmwares on the Hanlin V3 clones (6").
It works surprisingly well for devices, like the Sonys, that have bottom-mounted paging buttons, because in landscape mode, they turn into side-mounted paging buttons. (Duh, right?
The Sony 900 with its extra-tall screen and bottom buttons is particularly good in this mode.
Do consider that a lot of people are used to tiny text on their smartphones and PDAs so the small size on a dual-page landscape 6" is plenty large and two side-by-side pages allows a more comfortable scan width at those sizes and half the paging.
It's a matter of preference, like everything else.