The app also integrates with DropBox, so you can have a great deal of flexibility where your files are located.
You can use the i-FlashDrive to transfer files between iOS devices, as well as between an iOS device and a computer, or of course between computers as with a regular USB drive.
Another neat feature is a button to backup your contacts, and of course, restore them.
There are competing solutions, from Seagate and Kingston, and I've written about them before. My concern with those devices is the reliance on WiFi. Too often, my Kingston drive would lose its connection, making it impractical. The wired connection of the i-FlashDrive makes it a lot more reliable.
It also helps that no battery is required. Those wireless based solutions typically last four hours maximum. And they are also larger. The PhotoFast drive is about the size of a USB drive so it's easy to put in your pocket or gadget bag.
With rumors of a new 19 pin connector in the next generation of iOS products, I hope they will either offer an adaptor or updated model. The PhotoFast i-FlashDrive is available in 8GB, 16GB, 32GB, and even 64GB configurations. If you're running up against the memory limit of your current iOS device, or you'd like the cross platform solution it provides, the i-FlashDrive.