Actually, iPhone OS has a resolution independent measurement for presentation sizes. These are not pixels, are they? For example, I could make a width view of 10.55f, which would then be mixed with fractional pixels.
But what is the name of this "unit" in reality. Can we talk about "Units"? Or is it too general or even wrong? Can we talk about "square units"? How would you refer to this in a blog or magazine article?
The same goes for MAC OSX, I think.
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