Apple has made it known that they are to drop the 1.67GHz Intel Core Duo processor from their MacBook Pro line, and will instead be using faster chips. This opens the possibility up that Apple may spec forthcoming iBook notebooks with the low-end 1.67GHz dual-core processor. Appleâs professional and consumer level notebooks have long been differentiated by a variation in their processor specifications, so it was expected that new iBooks would be using single-core Intel Core Solo processors. But according to Intelâs prices for Core Solo and Core Duo, Apple would only save around $32 dollars by opting to include a 1.67GHz Core Solo processor, rather than a 1.67GHz Core Duo, in any of its forthcoming products. Apple may then have incentive to move to a Core Duo processor for iBooks very soon.