Thanks for your kind answers! :-)
I guess you are right, the best solution would be a tablet, but then I have to read on a lcd again...and then I can use my netbook also.
Danke schön :-) The Onyx Boox M92 sounds really good, but it isn't really sold anymore in German, is it?
And 300 something Euro is a lot...perhaps the 6' one, its only 130 Euro.
Well, I've to google some more time.
But if you have any ideas of a good way getting it in Germany? :-)