This could be a mistake, but it is interesting fodder for the rumor mill.
According to The Unofficial Apple Weblog, a recently published Best Buy web site displayed a MacBook Pro page with an Intel Core i7 chip logo.
The site has since been updated and the logo removed, though such a notebook is highly anticipated by many users.
Rivals such as Hewlett-Packard and Dell are now offering laptops in various product lines with the Core i5 and i7 processors. These Dell Studio laptops, for example, all sport Core i7 processors. Dell Alienware mobile systems come with both 45-nanometer quad-core Core i7 processors and the newest dual-core 32-nanometer i7-620M chip.