As presented, my recent board has 3.5mm Audio jack but I've not explained yet.... 

YES it works as webradio!!

Indeed a few months before, one acquaintance already let me know the webradio by RTL8710 but till now I did not check the operation, but surely it works very well!

The program and also compiled binary (in build/bin directory) is uploaded by Russian great programmer, pvvx.

After writing the file "ram_all.bin" by command (in the case of OSX)

cp ram_all.bin /Volumes/MBED/;sync

 Connect additional USB-UART to D6/D7 (in my board, I put characters "TXD" and "RXD") and

Connect speed of 38400bps-N-1 and push return to get command prompt, then write your SSID/password will start default web stream station. Other information (for example, station URL setting) is well described inthe above GitHub repository.

Actual operation can be found in the following movie... Have fun!