PhotoFast i-FlashDrive
One of the iPhone complaints is the lack of a memory card slot. I personally haven't felt the need for an additional memory card, but I get the usefulness this missing slot would provide. And while this product doesn't add a memory card, it does add an easy way to grab files off of your iPhone and transfer them via sneaker-net and USB.
The PhotoFast i-FlashDrive has a standard USB port on one end and a Apple iOS dock connector on the other. When the i-FlashDrive is first plugged in to your iPad, iPhone, or iPod Touch you will be prompted to install the PhotoFast App which helps you copy files to and from your iOS gadget. You can even back up your contacts without a computer.
Expect to see the PhotoFast i-FlashDrive for sale by July 8th in 8,16, and 32GB capacities ($99-$192).