Tyan should have a 760mp based mobo ready by end of Jan. (hopefully) If 760 based mobo are DDR based, I would guess that 760mp is gonna be DDR based too, which can be bad because DDR is still expensive. Plus I read somewhere that it is not easy to manufacture dual athlon board, so the intial cost maybe pretty high and Tyan is targeting the board at server market so it may have server board stuff like onboard scsi...etc which will add to the price of the board.
We will know in a month!!