Here's an idea, bring back the iBook models of 12" and 14", but of course, under the MacBook name. The 12" will be 1280x800, and the 14" will be 1440x900. Axe the MBP 13", and bring back the form factor of the PowerBook G4, of course updated to C2D. The 15" MBP can have 1600x900, and the 17" can stay the same, at 1920x1200, I believe. The MacBook Air follows the MacBook screen changes, 12" and 14".