Uploaded images stripped of EXIF data
Currently the images are being cleansed on upload, which means that they are being re-saved to make sure that no malicious code is injected in them.

Unfortunately, this means that EXIF data gets stripped out along the way, but since Craft already uses PEL, it should be possible to tweak Craft a bit so that the EXIF metadata is preserved during this operation. We'll look into that and, hopefully, this will make it to a release pretty soon.