I have slow cell service, so I've set my max mobile bitrate to 192 kbps, giving me acceptable quality when I'm away from home.
When I'm back home or connected to a Wi-Fi network (max bitrate 320 kbps), I'd like the ability for DSub to recognize that I'm connected to a Wi-Fi network and replace/upgrade the cached copies of any music that I choose to play when in Online mode to the new, higher bitrate.