I can confirm that the file upload works since beta 1. However, if you choose to take a photo (instead of selecting an existing one), the photo orientation may not work correctly. Tested with an iPad 2, beta 1 and beta 2. Will update my reply after testing with beta 3.
Are you saying when you take a live photo for the upload, it doesn't embed exif data with the orientation?
Strange. Does it not send it as a jpeg?
Yes it does. You can upload from your photo album.