Does iPhone automatically switch existing 3G connections to WiFi?
<p>On the iPhone, if you are currently in a TCP connection with a remote peer using 3G. If the user moves to a place with Wifi connectivity, does the iPhone OS automatically modify your connection to go through WiFi instead (assuming remote peer is also accessible via Wifi)? I ask because the docs point out that WiFi is preferred over 3G due to lower power consumption.</p>
