The kindle in question is 'Kindle DX'. It has 9.7" display. Its 2 months old and working fine.
I hadn't used it in awhile then last time I did I downloaded a bunch of free books and sample of amazon. it either shut down or bat died. then I turned it on and all I get is a white screen with the header or the adv. screen.
I mainly read tech and reference books and the majority of them are in PDF format.
I need to partition my financial assets to buy one of these three products. I am currently using a Lumia 900. I do not have a tablet. I am also very fond of the literary arts and reading. Right now I am leaning towards the Kindle, although I may consider one of the other two. What do you think?