Brickhouse Security sells the iPhone Spy Stick, an accessory that comes into play when you lose the data on your iPhone before you get to back it up on your PC. This stick needs to be plugged into the PC at the same time with the iPhone and it’ll reveal all the lost data on the handset.
This means that you’ll get deleted messages, contacts, photos, calendar data, deleted notes, voice memos and much more. Also, this allows a jealous partner to spy on his mate using the stick and uncovering messages and photos that shouldn’t be there. This is a great backup tool, but since it’s a product for paranoid users, it comes with quite a price: $199.
Right now, iPhone Spy Stick only supports iOS 3.2.1, but iPhone 4 support will be here in October.