I think the most sensible theory going is that Kleiman was the voice of Satoshi on this forum; the times during which our Satoshi posted seems to suggest he was doing it from the states. I think Wright probably wrote the white paper and had Kleiman edit it? And it was probably Wright communicating with Gavin by email.

Or not. But it has to have been someone, and a bunch of this stuff fits. Even if CSW happens to be some kind of nut. Let's face it...