Not really a big deal but I just noticed something and obviously it's not always like this like the thread title may suggest. I'm waiting on the Comcast guy to turn on my Internet and I have a router and modem plugged in but not connected to the wall (Internet). My iPhone is connected to the internet-less router so I have they wifi indicator on the phone. I'm still getting and sending iMessages however. Safari and everything else don't work however (of course). I just thought that was interesting that the 3G radio and wifi could work at the same time. And found it surprising only iMessage could do this. Don't like it can do this secretly however don't care because 1. It's small amounts of data. 2. My employer pays my monthly bill.