I would like to get an eReader. I want to use it mainly for for note taking. So is there any EReader which is best for note taking. It is not just for ebook text but to take a note on blanksheet. I like the E Ink devices with a good battery life but I need good software which allows me to write notes with my hand and save it as well as export in some useful format for example DOC, RTF or PDF etc.