There were announcements of the card...
ATI Radeon HD 4890X2 is real - Industry News - Overclockers Club , but I'm still having a look around to see if anybody actually had one in their hands.....
edit: I suspect however that it's probably a 4890 2GB card rather than an X2 and as such seems to be in the same range as a 275 so the price is probably close to what it should be, however I'm not sure I'd spend $250 on last gen tech......
edit#2: Nothing at all on anybody actually having an X2 in their grubby little hands so I suspect the OEMs decided it wasn't worth it, or something came up that made it a non-starter.
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