When you say timed shot, do you mean set the phone on something and remove my hands from the equation entirely? If so, what about downward shots? (Which, coincidentally, most of my photos are.)

Usually I reduce the tap-nudge by doing hold-and-release rather than a quick tap to take a photo. I'll give the timed shot a go and see how it works out. Thanks.

Edit: Eh. Better, but still quite blurry and off color compared to my iPhone 4.