Sorry to be resurrecting such an OLD thread, but there IS a way to control Pro-106/197 scanners via the iPhone.
Install Win500 on your PC and buy the license...it's WORTH it! You'll also need the remote cable from Radio Shack.
Run Win500 and head over to the Monitor/Control tab. Hit the big START button. (actually, you really don't even need to do this first providing you have completed the next step...)
Install the TeamViewer iPhone app on both your phone and your PC and set it up. BAM! Remote desktop access via your iPhone, and it works GREAT!
Soooooo...assuming your scanner is powered on and connected to your PC via the cable, you can start Win500 remotely on your phone (where you will see your PC's desktop) via TeamViewer, navigate to the Monitor/Control tab in Win500 and hit START. Your scanner is fully controllable from this tab in Win500. Voila!!!
You can then use any app that plays back Radio Reference feeds to listen to your scanner...while controlling it via TeamViewer.
I do not broadcast to RadioReference, but instead broadcast my own private feed via a ShoutCast server. I use the TuneIn radio app on the iPhone to listen to the feed...it's MUCH better than the ShoutCast app.
73
broonzbane