Heads up readers – all-new, top of the line Kindle almost ready. 8th generation. Details next week. — Jeff Bezos (@JeffBezos) April 4, 2016

The Voyage is still slightly smaller and lighter than the Paperwhite; it also features a screen with adaptive lighting technology and has pressure-sensitive page turn buttons. But for most readers, the cheaper Paperwhite is the better buy. We'll see what Amazon has to differentiate its new e-reader from the Voyage next week, but as for now Bezos isn't dropping any other details.

It's also worth noting that this is a pretty strange way to drop some news -- most new device launches are obviously shrouded in secrecy. Bezos' transparency around this implies that it's not that big of a deal, despite his "all-new" proclamation. And e-readers aren't exactly hotly anticipated gadgets at this point; Amazon got the formula right with the Kindle and continues to dominate the market with it. So there's not a whole lot for Bezos to lose by giving the masses a little tease of what's coming next.