Except I believe that the memory on the iPhone is composed of ball grid array chips. So then it becomes an issue of using a reflow gun or oven. Then, once you have removed those, you need to reball the chips or have a bga prototyping socket and then attach it a compatible controller chip. Then unless you have done this to all of the chips to dump their contents so you have a complete filesystem, or all you have is useless bits. So, while not impossible, it is not a 30 second procedure like hooking up a hard drive.