That would be a useful feature, but I'm not expecting any new features anytime soon, if ever. Fernapple's workarounds are the best way to deal with it for now. Shoot in landscape mode when you can.

Maybe a good idea. What the site actually does is, it displays them only in landscape. Which means that, in the mean time, there are at least three things you can do. One is to turn your camera landscape before you shoot, especially if shooting with this site in mind. The second is, if you do not need all of the photo, then crop it down in size removing the top and/or bottom to make it wider than high, and the third is to use a photo editor to put a longer than high frame around it, with a blank space on each side.