Everybody knows that there's no SummerBoard nor Customize for Firmware 2.0 yet.
So, what we need to do if we wanna change some graphics on our iPhone, while we're waiting for SummerBoard?
Firs of all connect to your iPhone via ssh and surf in
Here you find all the basic graphics that you would change. Following an example of different "Battery" charge icons.
So it's very easy, just replace the .png images in this folder. There's more. If you wanna change the default messages shown by iphone inside the blue cartoons; move into your language folder (like for example English.lproj) and edit your favorite strings inside SpringBoard.strings and USSD.strings . That's all !