Apple's manufacturing process for the new MacBook Air may have inadvertently given its competitors an avenue for copying the design, notebook industry tips claimed Monday night. Acer, ASUS and Lenovo are reportedly building 13.3- and 14-inch ultraportables that would use a combination of Intel's Sandy Bridge chips with the Mac's display assembly technique. After Apple separated the manufacturing of the main display cell from the backlight and back frame, shaving 3-5mm from the display thickness, Digitimes was told others now had access to the same process and could