I know some people are fine with Apple's double pixel method for some iPhone apps on the iPad. Honestly, I can't stand using an app that way since they just weren't crisp or sharp, they're blurry and don't look all that good. I don't actually use iPhone apps on my iPad (even though I keep a lot of them on my iPad) because the double pixel method sucks. Apple could have added an option to have games render at a higher resolution and/or add anti-aliasing instead.