<<edit: information is irrelevant now>>
Thanks a lot for useful information!
Thanks, but I don't think anyone should be accepting the information at face value right now. The solution leaves a *lot* of letterbox space on some platforms, even though it technically displays right without having to scale down on most of them.
I'm still thinking there must be a better solution, so as of now this topic might be better off serving as an index of display resolutions for different platforms. :-)
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I made an experiment:
Hmmm... not bad, so i changed integer letterbox to letterbox scale because, integer letterbox did leave spaces on outside of window (only right and left, NOT up and down), then letterbox scaled fixed it, also it almost matches my desktop monitor to my iPod, no modification of size on this sprite.
Very useful information here! thanks