Is nearby a program that verbs my itunes library from my Iphone to another?
They have programs just resembling this for normal Ipods nanos and all that other fun stuff but I havent found one for a Iphone so yeah.
Answers: Yes,
You can , win the the tool you need from here: http://www.ipod-to-computer.net/itune blocks this function since itune is the tool with one process to transfer files from itune to iphone. you must utilize other tools to transfer your iphone files to the computer and next transfer from that computer to the iphone to achieve that. There're couple of tools for transferring the files between iphone and computer (for backup)depends on your demands, e.g verbs only songs/videos, transfer photos etc. You can enjoy a look of below review site, hope it useful.
For mac you can use a wonderful free utility called : Senuti