While some reports are indeed claiming that the Arcade will have a Falcon motherboard, the mere presence of an HDMI port doesn't guarantee it. The motherboard design used on the initial batch of US Elite machines doesn't have the 65nm chip, so it could be more of these to use up the remaining chips.

Hardly.

That picture is from inside a Target store.

http://www.eastluna.com/console/details.php?id=2916&id2=b

Why wait until after the launch of Halo to do this???

I've just bought a core, purely for Halo.

If I'd know that a newer model was about to be released, I'd have waited.

Microshaft, can I have my money back please?