I've liked Pro HDR since it was first released. The HDR technique blends two or more exposures to capture better dynamic range in difficult lighting conditions. Apple provided some competition by building in HDR with the release of the iPhone 4 and iOS 4.1, but I still like the control that Pro HDR gives me both before and after the pictures are taken.
One of the big drawbacks to Pro HDR is that the location metadata and other picture information was not saved in the combined image, so location and other EXIF data was not available. That mea
