That's a good point. If Apple cared about iPhone apps on the iPad they would a) use the retina-quality images instead of pixel-doubling when in 2x mode and b) rotate the darn thing when in landscape mode. About the only time I use portrait mode on my iPad is when I need to use an iPhone only app. Apple must know this (not my personal experience, just that it iPhone app in an iPad experience rather sucks), but they choose not to address it.
3/1/12 at 2:08pm