I have long been saying that I would love Apple to make a larger MacBook -- say, 14" -- a fanless machine focused on portability and not Pro-oriented. Today I just happened to see some numbers that show the case for it very clearly. The Pro machines are heavier than the MacBook: 1.83kg and 1.37kg for the 15" and 13" respectively, compared to 0.92kg. Their screens are, of course, also larger: 15.4" and 13.3" versus 12". But when you work out how much weight you are carrying for each square inch of display area, the difference between a "Pro" and a "portable" machine is clear: 12" MacBook: 70.3 square inches of display per kg 13" MacBook Pro: 58 square inches per kg 15" Macbook Pro: 58.2 square inches per kg There is a 20% weight premium that comes with the Pro-ness of the Pro machines. Imagine if Apple could keep the same weight/display ratio and make a 15.4" MacBook (not Pro) weighing ~ 1.5kg... that would be a really compelling machine for me. Or a 14" MacBook weighing ~1.25kg (2.7lbs). That would be incredible.