Libiphone libiphone

When playing around with an older iPhone 3G and libiphone/ideviceinstaller I was first amazed how well most things are working.
I tried to install/uninstall some apps and it worked perfectly. Then I came across a game called "Cover Orange", which has been installed via iTunes. a backup could be taken as usual, but when trying to reinstall the app or also trying to install the original .ipa ideviceinstaller complains about missing CFBundleName.
I tried to understand whats going on (I have no experience in programming iPhone apps at all), because I thought the badly written gaming app could be the reason. After getting to know "plutil" I was able to confirm, that CFBundleName indeed is missing from Info.plist. Apple Dev documents state, that CFBundleName is just "recommended", so I think that leaving this out should be OK at all, but ideviceinstaller relies on this entry.
So my idea was to edit Info.plist and add the missing entry because from the code of ideviceinstaller it seemed to be used just for finding "Payload/%s.app/SC_Info/%s.sinf". I added the property to the xml text file, repacked as zip and renamed to .ipa. Having done that the installation aborts with "Install - Error occured: ApplicationVerificationFailed". The telephone's syslog tells me that some signing is needed, so my way of fooling the system does not work.
The consequence was to modify ideviceinstaller to use "CFBundleExecutable" instead of "CFBundleName" which was matching the needed string. The new version worked well for the original .ipa file. Furthermore CFBundleExecutable is present in all of my apps (not that many) with the needed value. This is mostly identical to CFBundleName, but the exceptions need the value of CFBundleExecutable for their directory structure rather than CFBundleName.

Please do further investigation and consider changing the used property.