I just received my PRS-505 on Thursday, 02/12. Sort of an early Valentines Day present from my lovely wife. It is already my favorite way to read! I have downloaded six books to read, and that was just last night.
While I admit that the Kindle has some desireable features, like not needing a computer to order and download a book, I can be somewhat obsesive and this way I have to really think about what I am buying before hand.