I don't think that crash.txt realy need to know how much free RAM has the PDA .
On my device becker works even if I delete this file, strange ...
I thought it was a simple error log file that is created / incremented only when an error occurs.

I don't think I need to now "the name of the Internal Memory or External SD" as long as almighty doctor created an PDA .exe

On point 3 useful and constructive information.

On point 4 congratulations.
I started to play with iGO last week, and I think I was lucky that revo2 it works on my Mio P 360.