The quote you posted seems to indicate that mobile devices are supported in this version:
. . .features enhanced DRM flexibility through named activation so that users can move content across platforms and mobile devices using an Adobe ID. . .
By your question, this makes me think it Adobe Digital Editions still does not support mobile devices....so which is it?
I tried the first version, which messed me up quite a bit....I won't install this software again to my computer and attempt to use it with any DRM books until I am also able to use it on my Pocket PCs.