Want to put your iPhone or iPod Touch in disk mode? Use an iPhone as a flash drive? iPhone Explorer is an iPhone browser for Mac that lets you browse the files and folders on your iPhone as if it were a normal USB flash drive or pen drive. You can use the very easy drag-and-drop methods to add or remove files and folders from the iPhone. The "-" button in the lower left will delete the select file from the iPhone (use cautiously) and the "+" button creates a new folder.

Features
100% Free iPhone browser for Mac and Windows
100% Drag-and-drop interface for easily copying files to and from your iPhone
Create, delete and rename files and folders on your iPhone or iPod Touch
Works with all iPhones and iPod Touches including the iPhone 3G and iPod Touch 2G
Allows you to use your iPhone as a flash drive / pen drive or put your iPhone into disk mode
Tiny download size
(Optional) If you jailbreak your iPhone you can access the real root of your iPhone and recover your address book, SMS, e-mails and more.