iTune alternative. 3 Best Free Alternatives to iCopyBot.

iCopyBot
SharePod
CopyTrans Manager
iDump

http://www.3alternatives.com/free-alternatives-icopybot

How to use iPod as a USB disk.

IPhone

To replace iPhone back panel, you can buy one from
http://www.iphonewzealand.co.nz/2010/all/replacement-metal-iphone-4-back-looks-awesome-easy-to-install-and-wont-void-your-warranty/
or
http://www.ifix.co.nz/