I used to use an iPod Touch 3rd Gen, for just about everything back in the day that I would use my current 4s for, organisation, email, music and whatnot. However, the thing that made it a slightly frustrating product for me to use was the curved back, which caused it to wibble wobble all of the place whilst typing on it. Furthermore, if my iPhone is resting against, say, a couple of leaves of paper on one corner, and then receives a notification, the sound is noticeably louder and less pleasant to listen to.
This new protrusion if it is a reality is definitely a black or white matter, with many thinking nothing of it, whilst others are deeming it to be a severely problematic aspect of the design. Whilst whenever my phone is down on a surface, it is resting on top of its phone case (Beyzacase ftw!) and therefore this issue would not be much of a problem to me in the long run, I do feel that if this is true about the camera, it probably should have been thought out better. If it is protruding by that much, I ask myself 'why have they bothered slimming the rest of the profile if the camera is going to be sticking out', that much of a millimeter thicker on the rest of the profile would add almost no mass, and seriously, is the end user going to notice?
Personally, what I have always loved about the Apple products of the recent years is the inclusion of a flush and uniform design, barring the white or black strips, they can eff off in my opinion. The MacBook Pro, Air, and just about every single one of their mobile devices (excluding said iPod Touch 5 of course) are totally flush, and they look rather fantastic all around, so WHY have they switched to this stupid raised camera!