I received my PP yesterday as well. Not nearly so favorably impressed as the Terp girl.
I'm trying to give it a second shot today though.
I hate the tiny tiny menu fonts -- they are virtually unreadable to my old eyes--even with my glasses on.
Operationally all is working, the contrast is lower than my Sony 505 so that is disappointing, but it is still better than an lcd etc.
I was able to authorize it with Adobe so that is cool and transferred one checked-out library book to it.
The operation/UI seems a bit more cumbersome than the Sony which is very straight-forward and intuitive. The PP is not (at least to me) -- it is going to take a bit of getting used to.
Also I don't particularly like the button layouts -- not nearly as easy to read one-handed as the 505 but again that may be something I'll get used to.
Love the 300 books and 1G SD card.