The ability to crop photos.
I wish there was the ability to crop photos from within the frame's user interface, the web interface, and the app.
Not all photos are taken in the orientation of how the frame is displayed and I hate the letterbox effect of many of my photos. I wish there was an option to easily identify and select all photos that are in the orientation opposite of how my frame is displayed. Then give me the ability to permanently crop the photo to fit the display area. Or even better, don't permanently crop the photo, but somehow store how it should be displayed in the frame's memory or photo's META data. This will preserve the original photo for if I later decide to change my frame's orientation.