Photo Caller ID
I apologize if this isn't the right section, but I figured those with jailbreak expertise might know this answer.
I like to add photos to contacts so they show up on caller ID. It's very frustrating to see iTunes automatically "optimize" photos, when I could probably do that myself if I knew the dimensions. As a result, the end product on the phone is not what I wanted it to look like.
Keep in mind, I know the overall dimensions of the iPhone screen. What I'm really interested in is that area that makes up the Caller ID photo section. It seems very close to a 4:3 ratio but, if someone has figured it out exactly, I'd sure appreciate it.