16:10 advantages:
Higher resolution for the same ppi and "
More vertical resolution
Higher resolutions for 1280·x, 1920·x, and 2560·x
Wider range of resolutions (as of now), including high-res 15.4" 1920·1200
17", 20", and 24" displays have higher resolutions (both ways) than 16", 18.4", and 21" 16:9 displays
16:9 advantages:
Wider so no "black bars" when watching 16:9 movies
Wider so easier to display two things side-by-side
Cheaper panels
High-res 13.1" 1600·900 panel has no 13" 16:10 equivalent
Can fit a full-size keyboard in a smaller display size
16", 18.4", and 21" displays are physically wider than 15", 17", and 20" 16:10 displays for similar heights
The benefits are in apples favor.....ALSO....they want to be the king of all media...
Like I said; as long as they don't go lower on the vertical res than 900 or 1050 then that's fine. But if they start going lower than that, then the notebook is useless to me. I don't want to have to keep scrolling up and down to see stuff. to me, 1920x1200 would be the perfect res for the MBP, and 1440x900 for the 13" MB.