There is Onyx boox A61S Hamlet(black), Bianca(white) available on the market and Desdemone in the future. They are 6" devices with very fast 800Mhz processors and the Pearl screen with excellent contrast. Unfortunately they are available only in Russia because no other distributor got interested in selling them. More you can find here:
http://booxusers.com/viewforum.php?f=8
And here are reviews:
http://translate.google.pl/translate...yx_A61S-1.html
http://translate.google.com/translat...late.google.pl