The scaling is simple magnification. So since the app uses graphics which are at the DPI of a 3G iphone (resolution 480x320), then you scale that up to 960x640

The scaling is simple magnification. So since the app uses graphics which are at the DPI of a 3G iphone (resolution 480x320), then you scale that up to 960x640 without redoing the art, you're going to get nasty jaggies, etc, as you just divided your DPI by 4. Pretty much everything looks that pixelated when you magnify it 2x. I mean, open up your computer's screen magnification app and set it to 200x zoom, and see how bad everything looks. It's somewhat similar to what standard def television looks like when blown up on a huge television screen which you then sit too close to, especially on PAL TVs (which aren't interlaced) For many apps, I prefer to use them at 1x in the middle of the screen, especially ones I do not have to type on.