They'll probably be the same people gloating about how awesome the GTX280 GX2 is when it comes out for $999 and causes brownouts in your neighborhood.
I agree with everyone who says "who cares" about the number of chips. If the 4870x2 can consistently provide better performance than the GTX280 for a lower sticker price, why would I care how many chips it uses?
BUT dont forget about the evil boogeyman called MICRO STUTTERING... it ruins my gaming experience everyday...even though i dont notice it at all...whateva it is