Eink-Tablet for writing and reading -- Sony Dpt-rp1?

[Henton]

Thank you very much for your answers Gimble, Synergi, LordEastwood!

Having thought about what you read I came back to my initial thought of going for the Sony; Onyx seems to be a great device, but I heavily need the split screen / two tabs mode for working; I took a closer look at apple devices, which seem to be very interesting, but moved back away from them because of the "normal" display.

So, thanks for all the suggestions and help!