Let the hive mind of Engadget get that for you.
"I am looking for a device that will stream sound from one source to several recipients. For example, I want to stream sound from my TV or stereo to my phone or MP3 player that has radio and Bluetooth capabilities. I have looked into radio transmitters and they seem like a decent choice, but I can't find one that uses external power (USB or from the plug) and I would want one with a transmit range of around 50 meters. Thanks!"
The article says that the developer of the tall tower has financing. If that is really true, the biggest hurdle to getting it built has already been overcome. Past "tall tower" proposals have faltered at the financing stage.
It's a great location for a CN Tower style development. Navy Pier is tourist central. The observation deck and restaraunts would do well.