Thanks for your advices, I decided to go for the PB902! The feature it has now are all I need (even if I would not mind any other improvement
)...
By the way, it has already arrived but I have some questions about it, however, I believe the right place to talk about it is the PB section so if you have some time the thread is this:
https://www.mobileread.com/forums/sho...d.php?t=124493