I guess the part I'm confused about is the Messages bit. Is it turning into a messaging app or something? That's what I'm confused on.
Oh, there’s a video showing the feature i somehow missed that does exactly what I said. Cool feature
Discussion
I hope not. The message signing thing is mainly used to prove that you own an address from what I can tell. Someone can ask you to sign a random number or something and then verify that it was in fact signed by that address.