Quote:
Originally Posted by HarryT
When you can't see the individual pixels (which is the case when the pixel density is this high) it really doesn't matter. Upscaling works absolutely fine on the iPhone 4.
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iPhone (original thru 3GS): 320 x 480
iPhone 4: 640 x 960
It is exactly double the resolution. So up-scaling would work pretty well, as long as you don't have a lot of detail.