Yes I already said that if you're running in native mode (requires a utility) then this entire discussion is way out in left field. Most people care about how Apple designed OSX to run not how we can scale it down to native resolution.
By your standards, if we run the 11" and the 13" MBAs at native resolution, the 11" would end up looking like a better contender against the 13". . But the way Apple presents the 11" right now makes it look like a big waste of space.
What is this (require utility) that you always mention? Where we can download this utility and how is going to affect the 11 running in 'native resolution'?
I'm confused.
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How I can get this special utility?You seem to be missing the point. While the 13" Air and the 15"rMBP have the same resolution out of the box, the latter is capable of a much higher resolution, and thus far more actual screen space, than the former. You can open the display preferences pane in system preferences and set the resolution to 1680x1050 or 1920x1200. You only need a special utility if you wish to run the machine at its native resolution of 2880x1800.