Lots of papers (freely accessible but in Chinese) on Yinghuo have been published in the
Chinese Journal of Space Science. I think others in the forum may be interested in the paper giving a description and specs of the YH-1 camera.
A few of these are being published in English in
Chinese Astronomy and Astrophysics, but for subscribers only (anybody has access to the pdfs? I would be quite interested...).
Note also than an informative paper on YH-1 (in English) and papers on Chang'E 1 and its preliminary results are also available for free on the Chinese Journal of Space Science
(vol 28 n 5)