What you need is a way to Mount iPhone, iPod touch, or iPad as USB drive in Windows or Mac OS X,with Phone Disk.
With Phone Disk installed, your computer actually finds the iOS device in “disk mode.”, rather than the regular iTunes mode. After connecting, you are able to see the majority of your phone’s file contents, and can use any spare storage space on it as a straight-up portable drive.
The app enables high-speed usb data transfers. I’ve tested 7-8mbps for iPhone 4. What’s yours?
The app is available for Free until Dec. 1, so hurry up.