Thank you all for your answer.
ScS, how many pages on the reader a regular book (about 350 pages) would come to?
Nat, It is somewhat similar to popeye drawing style, but the stories are completely different. You must read tintin ---
Following igorsk post, I looked on youtube at the reader's movies. I don't think the screen clearing will bother me. Though I sure hope future eInk device won't have it.