Tom,
I just had the app in the main Applications folder. I did download the newest build from 4/20/12 and I had to rename the app itself as there was a space in the file name (chirp-0.2.2 2). I got the app to open but now I'm having issues with my radio being recognized. It's a Yaesu FT-60R so I know I have to have the Clone mode on but for some reason the Macbook isn't recognizing anything plugged in to the USB cable. Not sure what to do about that one. Any ideas? Thanks again.

-Harold N0HEM

Did you happen to put the .app in a directory containing spaces? If