wow, thank you for the fast replay
your suggestion is very interesting, looks what I actually had in mind

so no JIT Dalvik involved, but just a way to quick root and to fool the OS in thinking he is 2.1, right?
unfortunately I still feel too noob about android, to start right away in tweaks...
at the moment I workaround my misery with Aldiko 2 for Android pre 2.1
http://www.appazonia.com/wp-content/...aldiko-2.0.apk
and cropping files on the pc with PDFQuench
http://www.hecticgeek.com/2012/01/pd...-ubuntu-linux/
edit:
http://sourceforge.net/projects/briss/ is WAY faster
in the meanwhile I'll try to improve my android culture, the IQ is my first tablet, and for the future I'll use it as a guinea pig