FWIW, I have an older version of Iguidance (2.1) and it works fine.
I've also set my baud rate for all of these gps programs to 115k and so far, everything is working great.
In addition, I set my phone location to 'off' and all is still working. Call me paranoid, but I don't like the thought of 'any' program being able to detect my location without my knowledge - not that I'm on the run or anything like that!
Anyway, just thought I'd share some of my settings.