Maybe, maybe not. What if Mail.app is programmed only to turn on this back door in certain circumstances? Only a very small percentage of people would ever th

Maybe, maybe not. What if Mail.app is programmed only to turn on this back door in certain circumstances? Only a very small percentage of people would ever think to packet sniff all the data their computer is sending. If this privacy-invading mode could be turned on by, say, sending a very specific spam-looking message to Mail.app, you could use this capability only when needed and be almost guaranteed that the target user is not running a packet sniffer. Also, how are you going to packet sniff what your iPhone is sending over 3G?