i have been snooping round the ipod and in springboard.app found applelogo.png . I converted it to normal png and it is the logo used when booting the iphone. Now im assuming by replacing this file you can change the boot logo (i havmt tried it yet) but if this is so you can changeit using a winterboard theme! In the theme have this Theme.theme/Bundles/com.apple.springboard.app/AppleLogo.png And put your own image. Can someone test this?