I have a question about the way that HD iPhone apps show up on the iPad. I have a lot of apps for my iPod Touch, and many of my favorites are those tuned for the Retina Display - that is, running at 960*640. I am wondering how they will look if I use them on an iPad 2. I understand that older apps for the iPhone/iPod touch, before the HD screen was produced, used to run on the iPad with pixels doubled. This worked, but did not always look perfect. But now that the iPhone runs at a similar resolution to the iPad (960*640 for the iPhone, versus 1024*768) - how are the high-definition iPhone apps displayed on the iPad? So they run in a slightly smaller box, but at the correct resolution? Or does the iPad run the low res version and double the pixels? Thanks!