One thing I did notice was that pictures taken with the volume button come out upside down if they are emailed for some reason. If you view them on the iPhone or even on the desktop, they look right side up. Texting, posting on Facebook and Twitter is fine. If you notice the screenshots that I took for this review comparing the camera quality between the 4 and the 4S, they are ALL UPSIDE DOWN!!!
After doing some research online, there are people that have the same issue and the way to remedy the problem is to have the home button face to the right if you want to take photos in landscape, so it makes it kind of pointless if you want to take photos with the volume button and email them.
It’s not a hardware problem, it’s a problem with iOS i believe because using 3rd party camera apps like Camera+ doesn’t have this issue.
“Just avoid holding it that way” – Steve Jobs