I am weighing my options at the moment and trying to get an affordable device for simply reading pdf ebooks, and maybe throwing up some low res, content-heavy (read, not graphics-intensive) movies every once and a while.My question is this: does the 8" screen of the M003 offer that big of an improvement over the 7" of the m001 or m002? Furthermore, would a 10" screen really be necessary for reading most ebooks?Some of the books I have are scanned directly, and the print can be a bit small. These are not comic books, most don't have complicated diagrams--they are generally scholarly non-fiction, and some are in Chinese (I study linguistics and Chinese). Does anyone have experience using a 7,8, or 10" with ebooks? My friend has a 6" kindle which I found a little lacking.