In TV I agree that you lose with 4:3, but not with laptops.
For me to have the same amount of info I now have in my 4:3 14" 1400x1050 laptop, I'll need a heavier 15" 1680x1050. The right part of the screen is usually empty, so why do I need to make it bigger? The only thing it will force me to do, is to put my launch bar on the side, so I can have a balanced viewing area.
I want a laptop computer, not a laptop movie viewer...