Disk for iPhone is a MacFUSE based filesystem that allows you to read and write files on your iPhone. It uses the MobileDevice API (like iTunes) to access the filesystem of the iPhone over USB.
REQUIREMENTS: You must have MacFUSE installed. See http://code.google.com/p/macfuse/ for more details on MacFUSE.
For more details on iPhoneDisk please read http://code.google.com/p/iphonedisk/