Well, I don't want to give away too many spoilers here in case people on my F-list haven't read Chapter 560 yet (or don't care about Naruto in the least and are happier without my mad ravings taking over their screen).
That said... as my alter-ego,
kagenjoujo, I've just posted
my review of Chapter 560, complete with my new theory about Tobi's "real" identity. I don't think it's one I've heard before, so anyone with an interest in the Naruto continuity should give it a look... although if my new theory has already been thrown around forums and such, I'd love to hear about what debates have already gone on.
Spoiler warning if you click the link, obviously.