http://www.chromium.org/spdy/spdy-protocol/spdy-protocol-draft2#TOC-Framing-Layer vs http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-03
On the IETF hybi wg mailing list you can actually see how Google engineers slowly turned the simple draft 76 protocol into a clone of their failed SPDY protocol.
http://www.ietf.org/mail-archive/web/hybi/current/maillist.html
Are they trying to trick other browser vendors into adopting SPDY after all?