Mouse Computer Japan (MCJ) released a 12" m-Book SW now with Core 2 Duo. link: http://www.google.com/translate?u=h.../0610/index.html&langpair=ja|en&hl=en&ie=UTF8 According to the website, the dimensions of the m-Book SW are 303mm x 225mm x 26~28mm. Using average thickness, the volume turned out to be smaller than the Macbook. (about 113 cu. in.) The volume of the Macbook is (12.78in x 8.92in x 1.08in) about 123 cu. in. The m-Book SW also includes a built-in ExpressCard slot (one feature Macbook is missing) and a DVD/DL drive. Even after the Core 2 Duo Macbook is released, the m-Book SW will remain as the world's smallest Core 2 Duo notebook unless the form factor of the Macbook is redesigned.