DiskAid is a wonderful small program that lets you access an iphone's or ipod touch's file system. Using it you can copy off songs from the iphone and also use the iphone as a removable storage device.
You can read more about it at its home page - http://www.digidna.net/diskaid/
Some of its features (as listed on this page are) -
- DiskAid is a Freeware, 100% free of charge.
- PC Windows & Mac OSX compatibility.
- Supports iPhone 1, 3G and all iPod Touch.
- Auto detection feature, just plugin it in !
- Copy Files & Folders between your iPhone or iPod Touch and your Computer
- Files & Folders Browser
- Drag & Drop
- Features rich file organization including folder creation, renaming... etc.
- No jailbreak needed
- Supported firmware versions : 1.1.1 to 2.0.2
Interestingly, I am using it on the firmware version 2.1 and have not faced any problems with it so far.