I can view the pictures and video correctly on my iPhone 4; that doesn't seem to be the issue for me. However, when I email pictures or video in portrait mode (phone upright), then it rotates both 90 degrees on its side. Same thing happens when I transfer the pictures and video to my PC and try to view the same pictures and video.
My fear is that this is not a widespread issue, even though Apple said it was, and that a fix may take months to come, if ever. I read that many people are having proximity sensor problems when holding the phone up to their ear when talking, but mine seems to be ok (assuming I understand what exactly that sensor is all suppose to do).
$299 for a phone, after years of R&D and supposedly field testing, should be better than this. I under their new antennae might be revolutionary and may pose some unexpected problems, but emailing pictures & video has been around a while & is nothing revolutionary.
Call Apple and complain about this issue not working for you. We all need to complain about this so they will get a fix for it. Supposedly, a new iOS update is coming in a couple of weeks. I will wait for that update before calling Apple back.