Just purchased a 2010 SE, which is the Canadian Special Edition and roughly equivalent to an EX with the Rear Entertainment System, from what I understand.
Well, there is no EX for the 2010 Odyssey in Canada - the lineup is: DX, NHL SE, EX-L and Touring. It matches up more with the EX-L than the DX (body-colored side mirrors, 16" alloy wheels, 8-passenger seating, 6-CD changer, but no leather heated seats, backup camera, power front passenger seat).